ESTIMATIONESTIMATIONEstimation is the scientific way of Estimation is the scientific way of working out the approximate cost of an working out the approximate cost of an engineering project before execution of engineering project before execution of the workthe work..

It is totally different from It is totally different from calculation of the exact cost after calculation of the exact cost after completion of the project. completion of the project.

Estimation requires a thorough Estimation requires a thorough Knowledge of the construction Knowledge of the construction procedures and cost of materials & procedures and cost of materials & labour in addition to the skill , labour in addition to the skill , experience, foresight and good experience, foresight and good judgment.judgment.

ESTIMATEESTIMATEAn estimate of the cost of a An estimate of the cost of a construction job is the probable cost construction job is the probable cost of that job as computed from plans and of that job as computed from plans and specificationsspecifications..

For a good estimate the, actual cost For a good estimate the, actual cost of the proposed work after completion of the proposed work after completion should not differ by more then 5 to 10 should not differ by more then 5 to 10 % from its approximate cost estimate, % from its approximate cost estimate, provided there are no unusual, provided there are no unusual, unforeseen circumstances.unforeseen circumstances.

NEED FOR ESTIMATENEED FOR ESTIMATE1.1. It help to work out the approximate cost It help to work out the approximate cost of the project in order to decide its feasibility of the project in order to decide its feasibility with respect to the cost and to ensure the with respect to the cost and to ensure the financial resources, if the proposal is approved.financial resources, if the proposal is approved.

2. 2. Requirements of controlled materials, such as Requirements of controlled materials, such as cement and steel can be estimated for making cement and steel can be estimated for making applications to the controlling authorities.applications to the controlling authorities.

3. 3. It is used for framing the tenders for the works It is used for framing the tenders for the works and to check contractor’s work during and after and to check contractor’s work during and after the its execution for the purpose of making the its execution for the purpose of making payments to the contractor. payments to the contractor.

4. 4. From quantities of different items of work From quantities of different items of work calculated in detailed estimation, resources are calculated in detailed estimation, resources are allocated to different activities of the project allocated to different activities of the project and ultimately their durations and whole planning and ultimately their durations and whole planning and scheduling of the project is carried out.and scheduling of the project is carried out.

SITE CONDITIONS AFFECTING THE OVERALL COSTSITE CONDITIONS AFFECTING THE OVERALL COST1 = Each type of work requires a different 1 = Each type of work requires a different method of construction. Construction may be method of construction. Construction may be of an ordinary house or office and it may of an ordinary house or office and it may also be of a Dam, Tunnel, Multistory also be of a Dam, Tunnel, Multistory building, Airport, Bridge, or a Road, already building, Airport, Bridge, or a Road, already in operation. Each of these works requires in operation. Each of these works requires totally different construction techniques, totally different construction techniques, type of machinery, and formwork. type of machinery, and formwork.

2 = Quality of labour and labour output varies 2 = Quality of labour and labour output varies in different localities.in different localities.

3 = Weather conditions greatly affect the 3 = Weather conditions greatly affect the output and, hence, the overall costoutput and, hence, the overall cost..

SITE CONDITIONS AFFECTING THE OVERALL COST (-SITE CONDITIONS AFFECTING THE OVERALL COST (-ctd-)ctd-)

4. 4. Ground conditions vary and change Ground conditions vary and change the method of construction. For the method of construction. For example, excavation may be dry, wet, example, excavation may be dry, wet, hard, soft, shallow or deep hard, soft, shallow or deep requiring different efforts.requiring different efforts.

5. 5. The work may be in open ground such The work may be in open ground such as fields or it may be in congested as fields or it may be in congested areas such as near or on the public areas such as near or on the public roads, necessitating extensive roads, necessitating extensive watching, lightening, and watching, lightening, and controlling efforts, etc.controlling efforts, etc.

SITE CONDITIONS AFFECTING THE OVERALL COST (-SITE CONDITIONS AFFECTING THE OVERALL COST (-ctd-)ctd-)

6. 6. The source of availability of a The source of availability of a sufficient supply of materials of sufficient supply of materials of good quality is also a factor.good quality is also a factor.

7. 7. The availability of construction The availability of construction machinery also affects the method of machinery also affects the method of construction.construction.

8. 8. Access to the site must be Access to the site must be reasonable. If the access is poor, reasonable. If the access is poor, temporary roads may be constructed.temporary roads may be constructed.

ESSENTIAL QUALITIES OF A GOOD ESTIMATORESSENTIAL QUALITIES OF A GOOD ESTIMATOR• In preparing an estimate, the Estimator In preparing an estimate, the Estimator must have good knowledge regarding the must have good knowledge regarding the important rules of quantity surveying. important rules of quantity surveying.

• He must thoroughly understand the He must thoroughly understand the drawings of the structure, for which he drawings of the structure, for which he is going to prepare an estimate. is going to prepare an estimate.

• He must also be clearly informed about He must also be clearly informed about the specifications showing nature and the specifications showing nature and classes of works and the materials to be classes of works and the materials to be used because the rates at which various used because the rates at which various types of works can be executed depend types of works can be executed depend upon its specifications. upon its specifications.

ESSENTIAL QUALITIES OF A GOOD ESTIMATOR (-ESSENTIAL QUALITIES OF A GOOD ESTIMATOR (-ctd-)ctd-)

A good estimator of construction costs should possess the following capabilities, also:-

1 = A knowledge of the details of construction work.

2 = Experience in construction work.

3 = Having information regarding the materials required, machinery needed, overhead problems, and costs of all kinds.

4 = Good judgment with regard to different localities, different jobs and different workmen.

5 = Selection of a good method for preparing an estimate.

6 = Ability to be careful, thorough, hard working and accurate.

7 = Ability to collect, classify and evaluate data relating to estimation.

8 = Ability to visualize all the steps during the process of construction.

ESSENTIAL QUALITIES OF A GOOD ESTIMATOR (-ctd-)ESSENTIAL QUALITIES OF A GOOD ESTIMATOR (-ctd-) Before preparing the estimate, the estimator should Before preparing the estimate, the estimator should

visit thevisit the site and make a study of conditions, site and make a study of conditions, there. For example, if the construction of a large there. For example, if the construction of a large building is planned, the estimator or his building is planned, the estimator or his representative should visit the site and: representative should visit the site and:

Note the location of the proposed building. Note the location of the proposed building. Get all data available regarding the soil.Get all data available regarding the soil. Make a sketch of the site showing all important Make a sketch of the site showing all important

details. details. Obtain information concerning light, power, and Obtain information concerning light, power, and

water. water. Secure information concerning banking facilities. Secure information concerning banking facilities. Note conditions of streets leading to railway yards Note conditions of streets leading to railway yards

and to material dealers, and and to material dealers, and Investigate general efficiency of local workman.Investigate general efficiency of local workman.

TYPES OF ESTIMATESTYPES OF ESTIMATES

There are two main types of estimates:-There are two main types of estimates:-1 = 1 = Rough cost estimate.Rough cost estimate.2 =2 = Detailed estimate. Detailed estimate.

Depending upon the purpose of estimate, Depending upon the purpose of estimate, some types of detailed estimate are as some types of detailed estimate are as follows:-follows:-

a)a) Contractor's estimateContractor's estimateb)b) Engineer's estimateEngineer's estimatec)c) Progress estimateProgress estimate

I = Rough cost estimateI = Rough cost estimate

• Estimation of cost before construction from Estimation of cost before construction from plans or architectural drawings of the plans or architectural drawings of the project scheme, when even detailed or project scheme, when even detailed or structural design has not been carried out, structural design has not been carried out, is called Rough cost estimate.is called Rough cost estimate.

• These estimates are used for obtaining These estimates are used for obtaining Administrative Approval from the concerning Administrative Approval from the concerning Authorities. Authorities.

• Sometimes, on the basis of rough cost Sometimes, on the basis of rough cost estimates, a proposal may be dropped estimates, a proposal may be dropped altogether. altogether.

Rough cost estimate (-Rough cost estimate (-ctd-)ctd-)• Unit costUnit cost is worked out for projects similar to is worked out for projects similar to

the project under consideration carried out the project under consideration carried out recently in nearly the same site conditions. recently in nearly the same site conditions.

• Unit cost means cost of execution of a unit Unit cost means cost of execution of a unit quantity of the work. quantity of the work.

Rough cost estimate (-Rough cost estimate (-ctd-)ctd-)• To find rough cost of any project, this worked To find rough cost of any project, this worked

average unit cost is multiplied with total average unit cost is multiplied with total quantity of the present work in the same units. quantity of the present work in the same units.

• For example, in case of a building, plinth area For example, in case of a building, plinth area (sq. ft.) of the proposed building is worked (sq. ft.) of the proposed building is worked out, which is then multiplied by the cost per out, which is then multiplied by the cost per unit area (Rs. /ftunit area (Rs. /ft22) of similar building ) of similar building actually constructed in the near past in nearly actually constructed in the near past in nearly the same site conditions, to find out the rough the same site conditions, to find out the rough cost estimate of the building. cost estimate of the building.

• This cost is sometimes adjusted by the average This cost is sometimes adjusted by the average percentage rise in the cost of materials and percentage rise in the cost of materials and wages. wages.

Rough cost estimateRough cost estimate The rough cost estimate may be prepared on the The rough cost estimate may be prepared on the

following basis for different types of projects:following basis for different types of projects:

1. 1. Cost per square foot of covered area (plinth Cost per square foot of covered area (plinth area) is the most area) is the most commonly adopted criterion commonly adopted criterion for preparing rough cost estimate for most of the for preparing rough cost estimate for most of the residential buildings.residential buildings.

2. 2. For public buildings, cost. Per person (cost For public buildings, cost. Per person (cost per capita) is per capita) is used. For example,used. For example,

Students hostel———————-—cost per studentStudents hostel———————-—cost per student

Hospitals————————————Cost per bedHospitals————————————Cost per bed

Hotel—————————————Cost per GuestHotel—————————————Cost per Guest

Rough cost estimate (-Rough cost estimate (-ctd-)ctd-)

3.3. Cost per cubic footCost per cubic foot is particularly suitable is particularly suitable for for commercial offices, shopping centers, and commercial offices, shopping centers, and factory buildingsfactory buildings, etc., etc.

4.4. For For water tank/reservoirwater tank/reservoir, cost may be worked , cost may be worked out on the basis of capacity in out on the basis of capacity in gallons of gallons of water storedwater stored..

5.5. For roads and railwaysFor roads and railways, cost may be found out , cost may be found out per mile/kilometerper mile/kilometer of length. of length.

6.6. For streetsFor streets, cost may be , cost may be per hundred per hundred feet/metersfeet/meters of length. of length.

7.7. In case of In case of bridgesbridges, , cost per foot/metercost per foot/meter of of clear span may be calculated.clear span may be calculated.

EXAMPLEEXAMPLE

Calculate the total rough cost Calculate the total rough cost

estimate and cost per Flat for a estimate and cost per Flat for a

multi-storey (4-storeyed) block multi-storey (4-storeyed) block

consisting of 40 residential flats. consisting of 40 residential flats.

Other details are given in the table:Other details are given in the table:

Sr. No

PORTION AREA(sq. ft)

UNIT COST (Rs./sq.ft.)

BuildingWorks

SanitoryWorks

ElectricServices

Sui GasServices

1 Main Flat Area

(i) Ground Floor

(ii) Ist Floor

(iii) 2nd Floor

(iv) 3rd Floor

20030200302003020030

1800150016501800

130130130130

100100100100

60606060

2 Park Area at G. Floor

75,800 800 -------- 40 -------

3 Circulation Area in all 4 floors

1936 1050 -------- 70 -------

4 Covered Shopping Area at G. Floor

920 950 -------- 70 -------

5 Attached Servant Quarters

2112 1150 55 70 40

Add the following costs as Lump Sum :Add the following costs as Lump Sum :1- 1- Road and Walkways = 15,00,000/-Road and Walkways = 15,00,000/-2- 2- Land Scapping = 12,00,000/-Land Scapping = 12,00,000/-3- 3- External Sewerage = 7,00,000/-External Sewerage = 7,00,000/-4- 4- External Water Supply, Overhead and External Water Supply, Overhead and Underground Water Tanks with pumping Underground Water Tanks with pumping machinery for each set of Flats = machinery for each set of Flats = 19,00,000/-19,00,000/-

5- 5- External Electricity = 3,00,000/-External Electricity = 3,00,000/-6- 6- Boundary Wall = 6,00,000/-Boundary Wall = 6,00,000/-7- 7- Miscellaneous unforeseen items Miscellaneous unforeseen items

= 8,00,000/-= 8,00,000/-8- 8- Add 6 % development charges.Add 6 % development charges.9- 9- Add 3 % consultancy charges Add 3 % consultancy charges

EXAMPLE 2EXAMPLE 2 Prepare a Rough-cost Estimate of a residential building Prepare a Rough-cost Estimate of a residential building

project with a total plinth area of all building of project with a total plinth area of all building of 1500 sq.m. given that:1500 sq.m. given that:

  linth Area Rate = Rs: 950.00 / sq. ft.linth Area Rate = Rs: 950.00 / sq. ft. Extra for special architectural treatment = 1.5 % of Extra for special architectural treatment = 1.5 % of

the buiding cost.the buiding cost. Extra for water supply and sanitary installations = 5 Extra for water supply and sanitary installations = 5

% of the building cost.% of the building cost. Extra for internal installations = 14 % of the Extra for internal installations = 14 % of the

buiding costbuiding cost Extra for Electric & Sui gas services = 16 % of Extra for Electric & Sui gas services = 16 % of

buiding costbuiding cost Contigencies 3 % overallContigencies 3 % overall Supervision charges = 8 % overallSupervision charges = 8 % overall Design charges = 2 % overallDesign charges = 2 % overall

EXAMPLE 3EXAMPLE 3 Prepare a Rough-cost Estimate based on unit Prepare a Rough-cost Estimate based on unit

costs of per unit plinth area basis of a four costs of per unit plinth area basis of a four storeyed office building having a carpet area of storeyed office building having a carpet area of 2000 sq.m. for obtaining the administrative 2000 sq.m. for obtaining the administrative approval of the Government. It may be assumed approval of the Government. It may be assumed that 30 % of the built up area will be taken by that 30 % of the built up area will be taken by the corridors, verandas, lavatories, staircase, the corridors, verandas, lavatories, staircase, etc. and 10 % of built up area will be occupied etc. and 10 % of built up area will be occupied by walls. The following data is given:by walls. The following data is given:

Plinth Area Rate = Rs: 1100.00 / sq. ft.Plinth Area Rate = Rs: 1100.00 / sq. ft. Extra for special architectural treatment = Extra for special architectural treatment =

0.5 % of the buiding cost.0.5 % of the buiding cost. Extra for water supply and sanitary Extra for water supply and sanitary

installations = 6 % of the building cost.installations = 6 % of the building cost.

Example 3Example 3 Extra for internal installations = 14 % of Extra for internal installations = 14 % of the buiding costthe buiding cost

Extra for electric services = 12.5 % of Extra for electric services = 12.5 % of buiding costbuiding cost

Extra for sui gas services = 6 % of buiding Extra for sui gas services = 6 % of buiding costcost

Extra due to deep foundations at site = 1.0 % Extra due to deep foundations at site = 1.0 % of buiding costof buiding cost

Contigencies = 2.5 % overallContigencies = 2.5 % overall Supervision charges = 8 % overallSupervision charges = 8 % overall Design charges = 2.5 % overallDesign charges = 2.5 % overall  

Example 4Example 4 Prepare a Rough-cost Estimate for obtaining the Prepare a Rough-cost Estimate for obtaining the

administrative approval of the Government for a administrative approval of the Government for a hospital project to serve both indoor and outdoor hospital project to serve both indoor and outdoor patiesnts in an important rural area. The hospital patiesnts in an important rural area. The hospital will consist of the following:will consist of the following:

Main administrative office with dispensing Main administrative office with dispensing operations, etc.operations, etc.

Two general wards, each of 20 general beds.Two general wards, each of 20 general beds. Superintendent Doctor’s Residence.Superintendent Doctor’s Residence. Two Assistant Doctor’s Residences.Two Assistant Doctor’s Residences. Eight single Nurses Quarters.Eight single Nurses Quarters. Four Compounder’s Quarters.Four Compounder’s Quarters. Twelve lower staff’s Quarters.Twelve lower staff’s Quarters.

DETAILED ESTIMATEDETAILED ESTIMATE • Detailed estimates are prepared by carefully Detailed estimates are prepared by carefully and separately calculating in detail the and separately calculating in detail the costs of various items of the work that costs of various items of the work that constitute the whole project from the constitute the whole project from the detailed working drawings after the design detailed working drawings after the design has been finalizedhas been finalized. .

• The mistakes, if any, in the rough cost The mistakes, if any, in the rough cost estimate are eliminated in the detailed estimate are eliminated in the detailed estimate. estimate.

• Detailed estimates are submitted to the Detailed estimates are submitted to the competent authorities for obtaining competent authorities for obtaining technical sanction.technical sanction.

DETAILED ESTIMATEDETAILED ESTIMATE The whole project is sub-divided into The whole project is sub-divided into different items of work or activities. The different items of work or activities. The quantity for each item is then calculated quantity for each item is then calculated separately from the drawings as accurately separately from the drawings as accurately as possible. The procedure is known as as possible. The procedure is known as ""taking out of quantitiestaking out of quantities".".

The quantities for each item may be The quantities for each item may be estimated and shown in the pattern which estimated and shown in the pattern which is called is called ""Bill of quantities."Bill of quantities."

The unit, in which each item of the wok is The unit, in which each item of the wok is to be calculated, should be according to to be calculated, should be according to the prevailing practice as followed in the prevailing practice as followed in various departments of the country.various departments of the country.

BILL OF QUANTITIESSr. NoSr. No

DescriptionDescription

of itemof item

NoNo MeasurementsMeasurements QuantityQuantity Total Total

QuantityQuantity

RemarksRemarks

LengthLength BreadthBreadth HeightHeight

PRICED BILL OF QUANTITIES

Sr. No.Sr. No. Description of ItemDescription of Item UnitUnit QuantityQuantity RateRate CostCost RemarksRemarks

DETAILED ESTIMATEDETAILED ESTIMATE

Each item of the work is then multiplied by its Each item of the work is then multiplied by its estimated current rate calculated by a fixed estimated current rate calculated by a fixed procedure to find out procedure to find out cost of the itemcost of the item. .

At the end, a total of all items of the work are At the end, a total of all items of the work are made to get the made to get the total estimated costtotal estimated cost..

The rates are usually as per The rates are usually as per Schedule of RatesSchedule of Rates for the locality plus a for the locality plus a premiumpremium to allow for rise to allow for rise in labor and material rates over and above the in labor and material rates over and above the schedule of rates. schedule of rates.

A percentage, usually 5% is also provided on the A percentage, usually 5% is also provided on the total estimated cost for the work to allow for total estimated cost for the work to allow for the possible the possible contingenciescontingencies due to unforeseen due to unforeseen items or expenditure or other causes, besides 2% items or expenditure or other causes, besides 2% establishment chargesestablishment charges..

DETAILED ESTIMATEDETAILED ESTIMATE

Besides drawings and details of measurements and Besides drawings and details of measurements and calculation of quantities (Bill of Quantities), the calculation of quantities (Bill of Quantities), the following following documents documents are also usually submitted with are also usually submitted with the detailed estimate for obtaining Technical the detailed estimate for obtaining Technical Sanction:Sanction:

1.1. A A reportreport explaining History, necessity, scope and main explaining History, necessity, scope and main features of the project, its design, and estimate, features of the project, its design, and estimate, etc.etc.

2. 2. SpecificationsSpecifications lying down the nature and class of work lying down the nature and class of work and material to be used in various parts of the work.and material to be used in various parts of the work.

3. 3. The The abstract of costabstract of cost (priced Bill of Quantities) (priced Bill of Quantities) showing the total quantities under each sub-head, rate showing the total quantities under each sub-head, rate per unit of measurement, and cost.per unit of measurement, and cost.

4. 4. Calculation sheetsCalculation sheets showing calculations for important showing calculations for important parts of the structure. In fact, in estimating the parts of the structure. In fact, in estimating the art and skill lies only in the computation of details art and skill lies only in the computation of details without any omissions, of all parts of the building or without any omissions, of all parts of the building or work.work.

CLASSIFICATION DEPENDING UPON CLASSIFICATION DEPENDING UPON PURPOSE OF DETAILED ESTIMATEPURPOSE OF DETAILED ESTIMATE

1- CONTRACTOR ESTIMATE1- CONTRACTOR ESTIMATEIt is made by the contractor for It is made by the contractor for determining the price or prices to be determining the price or prices to be bid. bid. It is usually a carefully prepared It is usually a carefully prepared detailed estimatedetailed estimate..2- ENGINEER’S ESTIMATE2- ENGINEER’S ESTIMATE

This type of estimate is made by the This type of estimate is made by the Engineer (Consultant) usually for the Engineer (Consultant) usually for the purposes of financing the work and for purposes of financing the work and for checking bids and running bills checking bids and running bills submitted by contractors.submitted by contractors.

3- PROGRESS ESTIMATES3- PROGRESS ESTIMATES• These are made by the These are made by the EngineerEngineer at at regular intervals for the completed regular intervals for the completed parts of the project during the parts of the project during the progress of the work for determining progress of the work for determining the amounts of partial payments to be the amounts of partial payments to be made to the contractor. made to the contractor.

• On large contracts, such estimates are On large contracts, such estimates are commonly made each month and, hence, commonly made each month and, hence, are frequently called are frequently called monthly monthly estimatesestimates..

UNFORESEEN ITEMS IN DETAILED ESTIMATE UNFORESEEN ITEMS IN DETAILED ESTIMATE

• While preparing a detailed estimate, one While preparing a detailed estimate, one had to be very careful to see that all had to be very careful to see that all items of the work are incorporated. items of the work are incorporated.

• It is likely that a few Items, though It is likely that a few Items, though unimportant in nature, might have been unimportant in nature, might have been overlooked and which may result in raising overlooked and which may result in raising the estimate of the project. the estimate of the project.

• There may be also certain unforeseen There may be also certain unforeseen circumstances affecting the project. circumstances affecting the project.

• Hence, a certain allowance usually Hence, a certain allowance usually 5 to 5 to 10% 10% of the total cost, is made in the of the total cost, is made in the estimation which will take care of all estimation which will take care of all these items that are unforeseen or are these items that are unforeseen or are overlooked and are known as overlooked and are known as "Contingencies"."Contingencies".

METHODS OF DETAILED ESTIMATEMETHODS OF DETAILED ESTIMATE The dimensions, length, breadth and height or The dimensions, length, breadth and height or depth are to be taken out from the working depth are to be taken out from the working drawings (plan, elevation and section). drawings (plan, elevation and section).

Junctions of walls, cornersJunctions of walls, corners and the and the meeting meeting pointspoints of walls require special attention. of walls require special attention.

For symmetrical footings, which is the usual For symmetrical footings, which is the usual case, earthwork in excavation in foundations, case, earthwork in excavation in foundations, foundation concrete, brickwork in foundation foundation concrete, brickwork in foundation and plinth, and brickwork in superstructure may and plinth, and brickwork in superstructure may be estimated by either of the be estimated by either of the two methodstwo methods::

(1)(1) SEPARATE OR INDIVIDUAL WALL METHODSEPARATE OR INDIVIDUAL WALL METHOD(2) CENTER LINE METHOD(2) CENTER LINE METHOD

SEPARATE OR INDIVIDUAL WALLS METHODSEPARATE OR INDIVIDUAL WALLS METHOD• The walls running in one direction are The walls running in one direction are termed as termed as ""long wallslong walls”” and the walls and the walls running in the transverse direction, as running in the transverse direction, as ""Short waLlsShort waLls",", without keeping in mind without keeping in mind which wall is lesser in length and which which wall is lesser in length and which wall is greater in length. wall is greater in length.

• Lengths of long walls are measured or Lengths of long walls are measured or found found ""Out-to outOut-to out"" and those of short and those of short walls as "walls as "In-to-in".In-to-in".

• Different Different quantitiesquantities are calculated by are calculated by multiplying the length by the breadth multiplying the length by the breadth and the height of the wall. and the height of the wall.

• The same rule applies to the excavation The same rule applies to the excavation in foundation, to concrete bed in in foundation, to concrete bed in foundation, D.P.C., masonry in foundation, D.P.C., masonry in foundation and super structure etc.foundation and super structure etc.

SEPARATE OR INDIVIDUAL WALLS METHODSEPARATE OR INDIVIDUAL WALLS METHOD• For symmetrical footing on either side, For symmetrical footing on either side, the center line remains same for super the center line remains same for super structure, foundation and plinth. So, the structure, foundation and plinth. So, the simple method is to find out the centre-simple method is to find out the centre-to-centre lengths of long walls and short to-centre lengths of long walls and short walls from the plan.walls from the plan.

• Long wall length out-to-outLong wall length out-to-out = Center to center length + half breadth = Center to center length + half breadth on one Side + half breadth on other side.on one Side + half breadth on other side.

= Center to center length + one breadth= Center to center length + one breadth

• Short wall length in-to-inShort wall length in-to-in = Center to = Center to Center length - one breadth.Center length - one breadth.

SEPARATE OR INDIVIDUAL WALLS METHODSEPARATE OR INDIVIDUAL WALLS METHODThis method can also be worked out in a quicker way., as This method can also be worked out in a quicker way., as

follows:follows:

For long wallsFor long walls• First of all, find the length of the First of all, find the length of the foundation trenchfoundation trench of the of the

long wall long wall “out-to-out”“out-to-out” in the same manner as explained in the same manner as explained above. above.

• The length of the The length of the foundation concretefoundation concrete is the same. is the same. • For the length of the For the length of the first footingfirst footing or first step of the or first step of the

brick wall, subtract two offsets (2x6"=12") in foundation brick wall, subtract two offsets (2x6"=12") in foundation concrete from the length of the trench or concrete. concrete from the length of the trench or concrete.

• For the For the second footingsecond footing subtract from the length of the 1st subtract from the length of the 1st footing two offsets (2x2.25"= 4.5"), for footing two offsets (2x2.25"= 4.5"), for 3rd footing3rd footing subtract subtract from the length of the 2nd footing 2 offsets (4.5") and in from the length of the 2nd footing 2 offsets (4.5") and in this way deal with the long walls up to the super-structure. this way deal with the long walls up to the super-structure.

For short wallsFor short walls

Follow he same method but instead of subtracting add two Follow he same method but instead of subtracting add two offsets to get the corresponding lengths offsets to get the corresponding lengths in-to-inin-to-in. .

FoundationTrench

1 Breadth2 1

Breadth2

CENTRE LINE METHODCENTRE LINE METHOD In this method, total length of centre lines of In this method, total length of centre lines of walls, long and short, has to be found out. walls, long and short, has to be found out.

Find the total length of centre lines of walls Find the total length of centre lines of walls of same type, having same type of foundations of same type, having same type of foundations and footings and then find the quantities by and footings and then find the quantities by multiplying the total centre length by the multiplying the total centre length by the respective breadth and the height. respective breadth and the height.

In this method, the length will remain the same In this method, the length will remain the same for excavation in foundations, for concrete in for excavation in foundations, for concrete in foundations, for all footings, and for foundations, for all footings, and for superstructure (with slight difference when superstructure (with slight difference when there are cross walls or number of junctions). there are cross walls or number of junctions).

This method is quicker but requires special This method is quicker but requires special attention and considerations at the junctions, attention and considerations at the junctions, meeting points of partition or cross walls. meeting points of partition or cross walls.

CENTRE LINE METHODCENTRE LINE METHOD For rectangular, circular polygonal For rectangular, circular polygonal (hexagonal, octagonal etc) buildings having no (hexagonal, octagonal etc) buildings having no inter or cross walls, this method is quite inter or cross walls, this method is quite simple. simple.

For buildings having cross or partition walls, For buildings having cross or partition walls, for every junction, half breadth of the for every junction, half breadth of the respective item or footing is to be deducted respective item or footing is to be deducted from the total centre length. from the total centre length.

Thus in the case of a building with one Thus in the case of a building with one partition wall or cross wall having two partition wall or cross wall having two junctions, deduct one breadth of the junctions, deduct one breadth of the respective item of work from the total centre respective item of work from the total centre length. length.

CENTRE LINE METHODCENTRE LINE METHOD For buildings having different types of walls, each set For buildings having different types of walls, each set

of walls shall have to be dealt separately. of walls shall have to be dealt separately.

Find the total centre length of all walls of one type Find the total centre length of all walls of one type and proceed in the same manner as described above. and proceed in the same manner as described above. Similarly find the total centre length of walls of Similarly find the total centre length of walls of second type and deal this separately, and so on. second type and deal this separately, and so on.

Suppose the outer walls (main walls) are of A type and Suppose the outer walls (main walls) are of A type and inner cross walls are of B type. inner cross walls are of B type.

Then all A type walls shall be taken jointly first, and Then all A type walls shall be taken jointly first, and

then all B type walls shall be taken together then all B type walls shall be taken together separately.separately.

In such cases, no deduction of any kind need be made for In such cases, no deduction of any kind need be made for

A type walls, but when B type walls are taken, for each A type walls, but when B type walls are taken, for each junction deduction of half breadth of A type walls (main junction deduction of half breadth of A type walls (main Walls) shall have to be made from the total centre Walls) shall have to be made from the total centre length of B type walls.length of B type walls.

CENTRE LINE METHODCENTRE LINE METHOD

At corners of the building where two At corners of the building where two walls are meeting, no subtraction or walls are meeting, no subtraction or addition is required. addition is required.

In the figure, the double cross-In the figure, the double cross-hatched areas marked P,Q,R, & S come hatched areas marked P,Q,R, & S come twice, while blank areas, A,B,C, & D twice, while blank areas, A,B,C, & D do not come at all, but these do not come at all, but these portions being equal in magnitude, portions being equal in magnitude, we get the correct quantity.we get the correct quantity.

DESCRIPTION AND UNITS OF DESCRIPTION AND UNITS OF MEASUREMENT FOR MEASUREMENT FOR COMMON ITEMSCOMMON ITEMS

1 = SITE CLEARANCE WORKS1 = SITE CLEARANCE WORKS

• This item is described in detail This item is described in detail but the price of this item is but the price of this item is usually indicated as usually indicated as lump sum (LS).lump sum (LS).

• The cost of this item is provided The cost of this item is provided in the estimate by judgment, in the estimate by judgment, according to the description of the according to the description of the item and is indicated as item and is indicated as Lump sum Lump sum (L.S). (L.S).

2 = EXCAVATION FOR FOUNDATION TRENCHES2 = EXCAVATION FOR FOUNDATION TRENCHES

• Earthwork in excavation for Earthwork in excavation for foundation trenches is calculated by foundation trenches is calculated by taking the dimensions of each trench taking the dimensions of each trench as as length X breadth X depth.length X breadth X depth.

• It is measured in cubic ft, cubic It is measured in cubic ft, cubic yard or cubic meter, according to the yard or cubic meter, according to the prevailing practice.prevailing practice.

• The payment for this item is The payment for this item is generally done as Rs. per hundred generally done as Rs. per hundred cubic ft. cubic ft.

FILLING IN TRENCHESFILLING IN TRENCHES Filling in trenchesFilling in trenches after the after the construction of foundation construction of foundation masonry is ordinary neglected. masonry is ordinary neglected. If the trench filling is, also If the trench filling is, also taken in account, it may be taken in account, it may be calculated by deducing the calculated by deducing the volume of masonry in trenches volume of masonry in trenches from that of the volume of from that of the volume of excavation.excavation.

3 = FOUNDATION CONCRETE (P.C.C.)3 = FOUNDATION CONCRETE (P.C.C.)• The type of concrete must be clearly The type of concrete must be clearly mentioned. The mix proportions and the type mentioned. The mix proportions and the type of cement, sand and coarse aggregate must be of cement, sand and coarse aggregate must be specified. specified.

• This item is measured in cubic ft and the This item is measured in cubic ft and the unit for measurement is, generally Rs. per unit for measurement is, generally Rs. per 100 cubic ft.100 cubic ft.

• When the soil is soft or weak, one layer of When the soil is soft or weak, one layer of dry bricks or stone solingdry bricks or stone soling is applied below is applied below the foundation concrete. The soling layer is the foundation concrete. The soling layer is computed in computed in sq.ft (length X breadth),sq.ft (length X breadth), specifying the thickness in description of specifying the thickness in description of item.item.

4 = BRICKWORK IN FOUNDATION UP TO PLINTH4 = BRICKWORK IN FOUNDATION UP TO PLINTH

Care must be taken, while taking dimensions Care must be taken, while taking dimensions from the drawings in the bill of quantities from the drawings in the bill of quantities because the walls in this part of the because the walls in this part of the structure are in the form of steps with structure are in the form of steps with changing dimensions. changing dimensions.

This item is calculated in cft and the unit This item is calculated in cft and the unit for payment is Rs. per 100 cft.for payment is Rs. per 100 cft.

In the description of work, the quality of In the description of work, the quality of bricks and mortar ratio must be specified. For bricks and mortar ratio must be specified. For example,example,"Brickwork in foundation and plinth using "Brickwork in foundation and plinth using first class bricks laid in (1:4) or (1:6) first class bricks laid in (1:4) or (1:6) cement-sand (c/s) mortar———————“cement-sand (c/s) mortar———————“

5 = BRICKWORK IN SUPER STRUCTURE5 = BRICKWORK IN SUPER STRUCTUREImportant considerations are:Important considerations are:

a =a = Measurements of walls shall be taken Measurements of walls shall be taken in the same order and in the same in the same order and in the same manner as for manner as for brickwork in foundations brickwork in foundations and plinth.and plinth.

b =b = In the first measurements, all In the first measurements, all openings such as doors, windows, openings such as doors, windows, veranda openings etc. shall be veranda openings etc. shall be neglected. However, deductions shall be neglected. However, deductions shall be made for all openings in the walls, at made for all openings in the walls, at the end of the item.the end of the item.

BRICKWORK IN SUPER STRUCTURE (ctd)BRICKWORK IN SUPER STRUCTURE (ctd)c = In the description of the work, the c = In the description of the work, the quality of bricks and mortar ratioquality of bricks and mortar ratio have to have to be specified.be specified.

d = d = Masonry for archesMasonry for arches shall be paid shall be paid separately, at a different rate.separately, at a different rate.

e = The height of super structure is very e = The height of super structure is very important. Generally the quantities are important. Generally the quantities are worked out for each storey separately and worked out for each storey separately and rates would be different for different rates would be different for different storeis because of additional labor work, storeis because of additional labor work, scaffolding and shuttering.scaffolding and shuttering.

f = f = The item is worked out in cft and the The item is worked out in cft and the standard unit for payment is Rs. Per 100 standard unit for payment is Rs. Per 100 cft.cft.

6 = DAMP PROOF COURSE (D.P.C.)6 = DAMP PROOF COURSE (D.P.C.) Horizontal D.P.C.Horizontal D.P.C. shall extend the full shall extend the full width of the super structure walls, width of the super structure walls, however, it shall not be provided across however, it shall not be provided across doorways and veranda openings. It is doorways and veranda openings. It is also provided in roof and floors.also provided in roof and floors.

Vertical D.P.C.Vertical D.P.C. is provided in is provided in external walls, especially, in the external walls, especially, in the walls of basements.walls of basements.

The quantity of D.P.C. is estimated in The quantity of D.P.C. is estimated in square ft.(on area basis) and standard square ft.(on area basis) and standard unit for payment is Rs. per 100 sft.unit for payment is Rs. per 100 sft.

7 = ROOFING & RCC WORKS7 = ROOFING & RCC WORKS Area of the Area of the Roof slabRoof slab is calculated by taking is calculated by taking inside dimensions of the room plus a bearing of inside dimensions of the room plus a bearing of the roof slab on the walls, on all sides. the roof slab on the walls, on all sides.

For R.C.C. Roof slabs and beamsFor R.C.C. Roof slabs and beams, the total , the total quantities of concrete and steel are estimated, quantities of concrete and steel are estimated, separately. separately.

The quantity of plain concrete is estimated in cft The quantity of plain concrete is estimated in cft and the standard unit for payment of concrete is and the standard unit for payment of concrete is Rs. per 100 cft.Rs. per 100 cft.

Volume of Volume of Reinforcing SteelReinforcing Steel is not deducted , is not deducted , while estimating the volume of plain concrete while estimating the volume of plain concrete for payment.for payment.

c = c = R.C.C. lintelsR.C.C. lintels over wall openings such as over wall openings such as doors and windows are also included in R.C.C. work.doors and windows are also included in R.C.C. work.

ROOFING & RCC WORKS (ctd)ROOFING & RCC WORKS (ctd)• Roof consisting of beams, battens, and tiles or Roof consisting of beams, battens, and tiles or wooden planks is estimated for each part, wooden planks is estimated for each part, separately. separately.

Steel beam is estimated by weight, whereas, wooden Steel beam is estimated by weight, whereas, wooden beam is measured in cft. Battens are estimated by beam is measured in cft. Battens are estimated by numbers indicating there size and lengths. Tiles are numbers indicating there size and lengths. Tiles are also estimated by size and numbers.also estimated by size and numbers.

• Roof finishingRoof finishing may consist of bitumen coating may consist of bitumen coating and/or Polythene sheets (water proofing) , earth and/or Polythene sheets (water proofing) , earth filling (heat proofing) and brick tiles, etc. filling (heat proofing) and brick tiles, etc.

Dimensions are taken from inner face to inner face Dimensions are taken from inner face to inner face of parapet walls. of parapet walls.

This item is estimated in sft and a composite rate This item is estimated in sft and a composite rate for payment is taken as Rs. per 100 sft of the roof for payment is taken as Rs. per 100 sft of the roof area.area.

8 = REINFORCEMENT STEEL / 8 = REINFORCEMENT STEEL / GENERAL STEEL WORKGENERAL STEEL WORK

Steel is provided separately from R.C.C. Steel is provided separately from R.C.C. per ton, per Kg, or per cwt (standard per ton, per Kg, or per cwt (standard weight also called weight also called Quintal or century Quintal or century weightweight equal to 112 Ibs = 50Kg). equal to 112 Ibs = 50Kg).

Quantity of steel can either be worked Quantity of steel can either be worked out by out by rules of thumb practicerules of thumb practice or by or by intensive calculationsintensive calculations taking the length taking the length and diameter of steel bars from the and diameter of steel bars from the working drawings showing reinforcement working drawings showing reinforcement details and bar-bending schedules. In details and bar-bending schedules. In taking length of bars, due margin of taking length of bars, due margin of hooks, bends and overlappinghooks, bends and overlapping is given is given

REINFORCEMENT STEEL / GENERAL STEEL REINFORCEMENT STEEL / GENERAL STEEL WORK (-ctd-)WORK (-ctd-)

As a As a Rule Of Thumb PracticeRule Of Thumb Practice, , for for ordinary beams and slabs for ordinary beams and slabs for residences, assume 6.75 Ibs of steel per residences, assume 6.75 Ibs of steel per cft of R.C.C. work. However, for R.C.C. cft of R.C.C. work. However, for R.C.C. columns, it varies from 8 to 10 Ibs per columns, it varies from 8 to 10 Ibs per cft., because normally, we use 2% of cft., because normally, we use 2% of steel in columns. steel in columns.

Percentage of steelPercentage of steel means, area of steel means, area of steel divided by total area of the column divided by total area of the column multiplied by 100 and 1% of steel in multiplied by 100 and 1% of steel in columns corresponds to a quantity of 4.5 columns corresponds to a quantity of 4.5 Ibs/cft.Ibs/cft.

9 = FLOORS9 = FLOORS Cement concrete floors. Mosaic floors, and Cement concrete floors. Mosaic floors, and brick floors are most commonly used. brick floors are most commonly used.

Payments are made separately for different Payments are made separately for different layers, like, topping, lean concrete, sand layers, like, topping, lean concrete, sand filling, earth filling, etc.filling, earth filling, etc.

Earth filling, sand filling and lean concrete Earth filling, sand filling and lean concrete are paid by volume, whereas, topping is paid are paid by volume, whereas, topping is paid on area basis, mentioning thickness in the on area basis, mentioning thickness in the description. description.

Standard unit for payment of topping is, Standard unit for payment of topping is, usually, Rs. per 100 sft.usually, Rs. per 100 sft.

The The skirtingskirting is estimated in running ft. is estimated in running ft.

10 = PLASTERING10 = PLASTERING The type of plaster, proportioning of materials The type of plaster, proportioning of materials and minimum thickness of plaster have to be and minimum thickness of plaster have to be specified. specified.

The quantity is calculated for total wall The quantity is calculated for total wall surface without deduction for openings such as surface without deduction for openings such as doors windows, ventilators, etc. However, if doors windows, ventilators, etc. However, if the wall is being plastered on both the faces, the wall is being plastered on both the faces, the deductions for opening areas are made from the deductions for opening areas are made from one side only. one side only.

Standard unit for payment is Rs. per 100 sft.Standard unit for payment is Rs. per 100 sft.

HeightHeight is also specified for plastering is also specified for plastering because, for greater heights, labor cost because, for greater heights, labor cost increases. The rate varies according to the increases. The rate varies according to the number of the storey number of the storey

11 = WOODWORK/CARPENTRY11 = WOODWORK/CARPENTRY The type of material used and the quantity The type of material used and the quantity of finish required should be clearly of finish required should be clearly indicated in the description of the item. indicated in the description of the item.

The rate for any type of woodwork includes The rate for any type of woodwork includes cutting of timber to required sizes, joinery cutting of timber to required sizes, joinery work, fittings and fastenings, three coats work, fittings and fastenings, three coats of oil paints or varnish, bolts, locks, of oil paints or varnish, bolts, locks, handles, etc. handles, etc.

The measurements are taken for the overall The measurements are taken for the overall area of doors, windows, etc.area of doors, windows, etc. If volume of If volume of timber required for these items is to be timber required for these items is to be finding out, the computed area is multiplied finding out, the computed area is multiplied with the nominal thickness and an allowance with the nominal thickness and an allowance of 25% is made for wastage of timber.of 25% is made for wastage of timber.

WOODWORK/CARPENTRY (-ctd-)WOODWORK/CARPENTRY (-ctd-) Rectangular wooden beams, vertical Rectangular wooden beams, vertical columns, trusses, etc., are columns, trusses, etc., are measured in cft. measured in cft.

Wooden stairs are measured in Wooden stairs are measured in number of steps and description of number of steps and description of the item includes the riser, tread, the item includes the riser, tread, and width of the steps. and width of the steps.

Wooden shelves are measured in Wooden shelves are measured in running ft (RFT).running ft (RFT).

12 = PLUMBING WORK/SANITARY FITTINGS12 = PLUMBING WORK/SANITARY FITTINGS

For water supply and drainage works in a For water supply and drainage works in a building, the pipe lines and sewer lines building, the pipe lines and sewer lines are measured in RFT, while other items are measured in RFT, while other items are measured in numbers.are measured in numbers.

These items include wash hand basins These items include wash hand basins (W.H.B.), kitchen basins (which may be (W.H.B.), kitchen basins (which may be of glazed ceramic, mosaic, or stainless of glazed ceramic, mosaic, or stainless steel), water closets (W.C., which may steel), water closets (W.C., which may be of European type, or local type), be of European type, or local type), flushing tanks (also known as flushing flushing tanks (also known as flushing cisterns), shower rose, and all type of cisterns), shower rose, and all type of water tapes.water tapes.

PLUMBING WORK/SANITARY FITTINGS (-ctd-)PLUMBING WORK/SANITARY FITTINGS (-ctd-) Within sewer lines, Within sewer lines, man holes or inspection chambersman holes or inspection chambers

are to be provided at every corner and also at a are to be provided at every corner and also at a distance, not exceeding every 50 ft inside the house distance, not exceeding every 50 ft inside the house and every 100 ft outside the house. and every 100 ft outside the house.

The The size of man holesize of man hole may be may be 2.5ft X 2,5ft2.5ft X 2,5ft for low depths for low depths and 3ft X 3ft, 4ft X 4ft or 5ft X 5ft for deep depths. and 3ft X 3ft, 4ft X 4ft or 5ft X 5ft for deep depths.

Drainage pipe lines outside the covered area but inside Drainage pipe lines outside the covered area but inside the boundary wallthe boundary wall are, usually, of R.C.C. with minimum are, usually, of R.C.C. with minimum diameter 4 in, however, these are available in different diameter 4 in, however, these are available in different sizes. sizes.

Inside the buildingInside the building, drainage pipe is, usually, of C.I. , drainage pipe is, usually, of C.I. with minimum diameter 3 in. with minimum diameter 3 in.

Water supply pipes are, usually, G.I. pipes., estimated Water supply pipes are, usually, G.I. pipes., estimated in RFT in different dias. in RFT in different dias.

Other accessories, like sockets, elbows, tees, reducers, Other accessories, like sockets, elbows, tees, reducers, unions, etc., are estimated in numbers. unions, etc., are estimated in numbers.

13 = ELECTRIC FITTINGS13 = ELECTRIC FITTINGS

• All the accessories used in All the accessories used in electric fittings are described electric fittings are described in detail and in detail and payment is done in payment is done in numbers or RFTnumbers or RFT..

• All All wires and pipeswires and pipes are taken in are taken in RFT while other items are taken RFT while other items are taken in No’s.in No’s.

SOME COMMON RELATIONS USED SOME COMMON RELATIONS USED IN BUILDING ESTIMATESIN BUILDING ESTIMATES

1- MORTARS

(a)Cement-Sand Mortars120 cft dry yields 100 cft wet

(b) Lime-Sand Mortars113 cft dry yields 100 cft wet

(C) Cement-Lime-Sand Mortars112 cft dry yields 100 cft wet

(d) Dry mortar required for 100 sft of ½” thick cement plaster =6 cft

2- CEMENT CONCRETE154 cft dry yields 100 cft wet

3- BRICKWORK(a) 100 cft Brick masonary Bricks ------------1350

Dry Mortar ------- 30 cft

Wet Mortar ------- 25 cft

(b) 100 sft surface area using bricks on bedBricks --------------360Mortar ------------- 9

cft

(b) 100 sft surface area using bricks on edgeBricks --------------540Mortar ------------- 13

cft

4- POINTING PER 1000 SFT AREA

Ingredient 1:1 1:2 1:3Cement 8 cft 5 cft 3.8 cftSand 8 cft 10 cft 11.4 cft

5- EARTHWORKOutput of labor assuming one man working 8 hours per day with lift up to 5 ft or less

TYPE OF SOIL EXCAVATION PER DAYMedium Soil 75 – 100 cft

Hard / Stiff Soil 50 – 75 cftRocky Soil 25 – 30 cft

6- BITUMEN

Bitumen for 100 sft of DPC (first coat)

= 15 Kg

Bitumen for 100 sft of DPC (second coat)

= 10 Kg7- CEMENT1 Bag ------------- 50 Kg (Weight), 1.25 cft

(Volume)

8- SPECIFIC WEIGHTSRCC --------------- 150

lbs / cft

PCC --------------- 145 lbs / cft

Aggregate ------- 166 lbs / cft

9- TIMBERTimber for 100 sft of Panelled Doors and Windows = 13 cft

Timber for 100 sft of Glazed windows and Ventilators = 8 cft

10- WHITE WASH

Lime for 100 sft of white wash (one coat)

= 1.00 Kg

ESTIMATION OF A SIMPLE ESTIMATION OF A SIMPLE BUILDINGBUILDING

PLANPLAN

FOUNDATIONSFOUNDATIONS

SPECIFICATIONSSPECIFICATIONS Clear height of roomsClear height of rooms: : 12’12’ Clear height of VerandahClear height of Verandah: : 10’-0”10’-0” Plinth levelPlinth level: : 1’-6”1’-6” Thickness of roof slabThickness of roof slab: : 4”4” Thickness of RCC shadeThickness of RCC shade: : 3”3” Depth of RCC Beams in VerandahDepth of RCC Beams in Verandah:: 1’-6” below verandah 1’-6” below verandah

slabslab Parapet wallParapet wall: : 1’-0” (Clear height above roof tiles)1’-0” (Clear height above roof tiles) Ventilators (4 No.)Ventilators (4 No.): : 2’-6” x 1’-6”2’-6” x 1’-6” RCC lintelRCC lintel: : 6” in depth6” in depth Damp proof coarseDamp proof coarse: : 1 ½”thick PCC (1:2:4) + 2 coats of 1 ½”thick PCC (1:2:4) + 2 coats of

hot bitumen + polythene sheethot bitumen + polythene sheet Full foundationFull foundation up to plinth level along verandah up to plinth level along verandah

periphery is providedperiphery is provided Internal finishesInternal finishes:: Three coats of white wash/distemper Three coats of white wash/distemper

paintpaint External finishesExternal finishes:: Three coats of Weather shield paint Three coats of Weather shield paint

Center to Center Center to Center LengthsLengths

L1 =L1 = (10’-0”) + (12’-0”) + (0’-4 ½”) + (0’-4 (10’-0”) + (12’-0”) + (0’-4 ½”) + (0’-4 ½”) + ½”) + (0’-4 ½”) = (0’-4 ½”) = 23’-1 ½”23’-1 ½”

S1& S2 =S1& S2 = (12’-0”) + (0’-4 ½”) + (0’-4 ½”) = (12’-0”) + (0’-4 ½”) + (0’-4 ½”) = 12’-9”12’-9”

S3 =S3 = (8’-0”) + (0’-4 ½”) - (0’-4 ½”) = (8’-0”) + (0’-4 ½”) - (0’-4 ½”) = 8’-0”8’-0”

BILL OF QUANTITIESBILL OF QUANTITIES1- CIVIL WORKS1- CIVIL WORKS

S.No

Description of item

No Measurement Quantity Total Quantit

y

Remarks

Length Breadth Depth

1 Earthwork for excavation in foundation trenches

L1 3 25’-7 ½ //

2’-6” 3’-6” 224.22 cft

672.66 cft L = 23’-1 ½”+2’-6” = 25’-7 ½”

S1 2 10’-3” 2’-6” 3’-6” 89.69 cft 179 .38 cft

L = 12’-9”-(2’-6)” = 10’-3”

S2 1 10’-3” 2’-1 ½ ”

3’-6” 76.23 cft 76.23 cft L = 12’-9”-(2’-6)” = 10’-3”

S3 2 5’-6” 2’-6” 3’-6” 48.13 cft

96.25 cft L = 8’-0”-(2’-6)” = 5’-6”

Total =

1024.52 cft

2 Earth work in filing under floors

Room No.1 1 12’-0” 12’-0”

0’-6 ½ ”

78.00 cft

78.00 cft D = 1’-6”-(0’-11 ½”) = 6 1/2”

Room No.2 1 10’-0” 12’-0”

0’-6 ½ ”

65.00 cft

65.00 cft

Veranda 1 22’-4 ½ ”

7’-3” 0’-6 ½”

87.87 cft

87.87 cft L = 10’-0”+(0’-4½”)+(12’-0”) = 22’-4 ½”B = 8’-0”-(0’-9)”= 7’-3”

Total =

230.87 cft3 P.C.C (1:4:8)

in foundation using crushed or broken stones

Length & Breadth same as for Foundation trenches(Item No. 1)

L1 3 25’-7 ½ ”

2’-6” 0’-6”

32.00 cft

96.00 cft

S1 2 10’-3” 2’-6” 0’-6”

12.81 cft

25.63 cft

S2 1 10’-3 2’-1 ½”

0’-6”

10.89 cft

10.89 cft

S3 2 5’-6 2’-6” 0’-6”

6.87 cft 13.75 cft

Total= 146.27 cft

4 Burnt brick work in foundation and plinth using first class bricks in (1:6) cements sand mortar.(a) L1

1st step 3 24’-7 ½ ”

1’-6” 0’-6” 18.47 cft

55.40 cft

L = 23’-1½”+(1’-6”) = 24’-7½”

2nd step 3 24’-3” 1’-1 ½ “

0’-6” 13.64 cft

40.92 cft

L = 23’-1½”+(1’-1½”) = 24’-3”

3rd step up to plinth level

3 23’-10 ½”

0’-9” 3’-4 ½”

60.43 cft

181.30 cft

L = 23’-1½”+(0’-9”) = 23’-10½”D = 2’-0” +(1’-6”) –(0’-1 ½”) = 3’-4 ½”

Total= 277.62 cft

(b) S1

1st step 2 11’-3” 1’-6” 0’-6” 8.44 cft 16.88 cft

L = 12’-9”-(1’-6”) = 11’-3”

2nd step 2 11’-7 ½ ”

1’-1 ½ ”

0’-6” 6.54 cft 13.08 cft

L = 12’-9”-( 1’-1½”) = 11’-7½”

3rd step up to plinth level

2 12’-0” 0’-9” 3’-4 ½ ”

30.37 cft

60.75 cft

L = 12’-9”-( 0’-9”) = 12’-0”

Total= 90.71 cft

(c) S2

1st step 1 11’-3” 1’-1 ½ ”

0’-6” 6.33 cft 6.33 cft L = 12’-9”-(1’-6 ”) = 11’-3”

2nd step 1 11’-7 ½ ”

0’-9 ” 0’-6” 4.36 cft 4.36 cft L = 12’-9”-( 1’-1½”)= 11’-7½”

3rd step up to plinth level

1 12’-0” 0’-4 ½ ”

3’-4 ½ ”

15.19 cft

15.19 cft L = 12’-9”-( 0’-9”) = 12’-0”

Total= 25.88 cft

(d)S3

1st step 2 6’-6” 1’-6” 0’-6” 4.87 cft 9.75 cft L = 8’-0”-(1’6”) = 6’-6’

2nd step 2 6’-10 ½ ”

1’-1 ½”

0’-6” 3.86 cft 7.73 cft L = 8’-0”-(1’-1½”) = 6’-10½”

3rd step up to plinth level

2 7’-3” 0’-9” 3’-4 ½ ”

18.35 cft

36.70 cft L = 8’-0”-(0’-9”) = 7’-3”

Total= 54.18 cft

(e) steps in front of verandah

1st step 1 23’-10 ½”

2’-0” 0’-6” 23.88 cft

23.88 cft L = 23’-1½”+(0’-4½”) + (0’-4½”) =23’-10½”

2nd step 1 23’-10 ½”

1’-0” 0’-6” 11.94 cft

11.94 cft

Total= 35.82 cft

G.Total= 484.21 cft

5 1-1/2” thick P.C.C (1:2:4) in DPC including two coats of hot bitumen & 2 layers of Polythene sheet

Length & Breadth same as for plinth wall

L1 2 23’-10 ½” 0’-9” - 17.9 sft 35.81 sft

S1 2 12’-0” 0’-9” - 9.00 sft 18.00 sft

S2 1 12’-0” 0’-4 ½”

- 4.5 sft 4.50 sft

Verandah columns 3 0’-9” 0’-9” - 0.56 sft 1.69 sft

Total =

60.00 sft

Deduction of Door sills

1 4’-0” 0’-9” - 3.00 sft 3.00 sft

1 4’-0’ 0’-4 ½”

- 1.50 sft 1.50sft

Total= 4.50 sft

Net Total =

55.50 sft

6 Brick work in super structure using first class bricks in (1:4) cement sand mortar

Length & Breadth same as for plinth wall

L1 2 23’-10 ½”

0’-9” 13’-10 ½”

248.45 cft

496.90 cft H = 12’-0” (Room height) + 0’-4” ( Slab) + 0’-4’’ (Earth filling) + 0’-1”(Mud plaster) + 0’-1½” (Tiles) + 1’-0” (P. wall) = 13’-10½”

S1 2 12’-0” 0’-9” 13’-10 ½”

124.87 cft

249.75 cft

S2 1 12’-0” 0’-4½ ”

12’-0” 54.00 cft 54.00 cft No Parapet Walls

Verandah columns 3 0’-9” 0’-9” 8’-6” 4.78 cft 14.34 cft H=10’-0”- (1’-6”)=8’-6”

Verandah parapet walls

(i) L1 1 23’-10 ½”

0’-9” 1’-6 ½” 27.60 cft 27.60 cft H = 0’-4” (Earth filling) + 0’-1” (Mud plaster) + 0’-1½” (Tiles) + 1’-0” (P. walls) = 1’-6½”

(ii) S3 2 7’-3” 0’-9” 1’-6 ½ ”

8.38 cft 16.76 cft

Total= 859.35 cft

DeductionDoors 1 4’-

0”0’-9” 7’-

0”21.00 cft

21.00 cft

1 4’-0”

0’-4 ½ ”

7’-0”

10.5 cft 10.50 cft

Windows 3 4’-0”

0’-9” 4’-0”

12.00 cft

36.0 cft

Ventilators 4 2’-6”

0’-9” 1’--6”

2.81 cft 11.25 cft

Shelves 2 4’-0”

0’-6” 5’-0”

10.00 cft

20.00 cft

RCC lintels over

(i)doors 1 5’-0”

0’-9” 0’-6’

1.87 cft 1.87 cft

1 5’-0”

0’-4 ½ ”

0’-6’

0.93 cft 0.93 cft

(ii)Windows 3 5’-0”

0’-9” 0’-6’

1.87 cft 5.62 cft

(iii)Ventilators

4 3’-6”

0’-9” 0’-6’

1.31 cft 5.25 cft

(iv)Shelves 2 5’-0”

0’-9” 0’-6’

1.87 cft 3.75 cft

Total = 116.18 cft

Net Total = 743.17

cft

7 Reinforced cement concrete (1:2:4) as in roof slab, lintels, columns, beams etc., (reinforcement will be measured separately)

There is 4½” bearing of both slabs on all walls

Roof slab of rooms

1 23’-1 ½”

12’-9” 0’-4”

98.28 cft

98.28 cft

L = 10”-0” + 12’-0” + 0’-4½” + 0’-9” (2 bearings) = 23’-1½”

B = 12’-0” + 0-4½”(bearing) + 0’-4½”(bearing) = 12’-9”

Roof slab of Verandah

1 23’-10 ½ ”

8’-4 ½ ”

0’-4”

66.65 cft

66.65 cft

B = 8’-0” + 0’-4½” (bearing) = 8’-4½”

Verandah beam

Long beam 1 23’-1 0½”

0’-9” 1’-6”

26.86 cft

26.86 cft

Short beam 2 7’-7 ½ ”

0’-9” 1’-6”

8.59 cft

17.18 cft

L=8’-0”-(0’-9”) + (0’-4½”) = 7’-7½”

LintelsDoors 1 5’-

0”0’-9” 0’-6’ 1.87

cft1.87 cft

1 5’-0”

0’-4½ ”

0’-6’ 0.93 cft

0.93 cft

Windows 3 5’-0”

0’-9” 0’-6’ 1.87 cft

5.62 cft

Ventilators 4 3’-6”

0’-9” 0’-6’ 1.31 cft

5.25 cft

Shelves 2 5’-0”

0’-9” 0’-6’ 1.87 cft

3.75 cft

Shades 2 5’-0”

1’-6” 0’-3” 1.87 cft

3.75 cft

Total= 226.39 cft

8 Mild steel round bars as reinforcement including cutting, bending, binding and placing reinforcement in position

6.75 lbs/cft steel of 226.39 cft concrete

=1528.13 lbs

Total= 1529.00 lbs

9 Roof insulation comprising of 2 coats of hot bitumen, 4” thick earth filling, 1” thick mud plaster and 1-1/2” thick brick tiles jointed and pointed in cement sand mortar (1:3)

Rooms (1 & 2) 1 22’-4 ½ ”

12’-0”

- 268.50 sft

268.5 sft L = 10’-0”+ (12”-0”) + (0’-4½”) = 22’- 4-½”

Verandah 1 22’-4 ½ ”

7’-3”

- 162.22 cft

162.22 cft

B = 8’- 0”- (0’-9”) = 7’-3”

Total =

430.72 sft

10 Sand under floors

Room No.1 1 10’-0” 12’-0”

0’-6” 60.00 cft

60.00 cft

Room No.2 1 12’-0” 12’-0”

0’-6” 72.00 cft

72.00 cft

Verandah 1 22’-4½ ” 7’-3” 0’-6” 81.11 cft

81.11 cft

Total =

213.11 cft

11 Cement concrete (1:4:8) as under layer of floorsRoom No.1 1 10’-0” 12’-

0”0’-4” 40.00

cft40.00 cft

Room No.2 1 12’-0” 12’-0”

0’-4” 48.00 cft

48.00 cft

Verandah 1 22’-4 ½ ”

7’-3” 0’-4” 54.07 cft

54.07 cft

Total =

142.07 cft

12 1-1/2” thick cement concrete (1:2:4) as top layer of floor, finished smooth

Room No.1 1 10’-0” 12’-0”

- 120.00 sft

120.00 sft

Room No.2 1 12’-0” 12’-0”

- 144.00 sft

144.00 sft

Verandah 1 23’-10 ½”

8’-0” - 191.00 sft

191.00 sft

L = 10’-0” + (12’-0”) + (0’-4 ½ ”) + (0’-9”) + (0’-9”) = 23’-10 ½ ”

Door sill 1 1 4’-0’ 0’-9” - 3.00 sft

3.00 sft

Door sill 1 1 4’-0” 0’-4 ½ ”

- 1.50sft 1.50sft

Total= 459.5 sft

DeductionColumns 3 0’-9” 0’-9” - 0.56

sft1.68sft

Net Total=

457.80 sft

13 ½” thick

(1:3) cement sand plaster to walls finished smoothInner side

Room No.1 (Long wall)

2 12’-0” - 12’-0”

144.00 sft

288.00 sft

Room No.1(Short wall)

2 10’-0” - 12’-0”

120.00 sft

240.00 sft

Room No.1 (Ceiling)

1 10’-0” - 12’-0”

120.00 sft

120.00 sft

Room No.2 (Long wall)

2 12’-0” - 12’-0”

144.00 sft

288.00 sft

Room No.2(Short wall)

2 12’-0” - 12’-0”

144.00 sft

288.00 sft

Room No.2 (Ceiling)

1 12’-0” - 12’-0”

144.00 sft

144.00 sft

Verandah wall 1 23’-10 ½”

- 10’-0”

238.75 sft

238.75 sft

L = (10’-0”) + (12’-0”) + (0’-4½ “) +(0’-9”)+ (0’-9”) = 23’-10 ½ “

Verandah ceiling 1 22’-4 ½” - 7’ –3”

162.26 sft

162.26 sft

L = (10’-0”)+(12’-L = (10’-0”)+(12’-0”) +(0’-4 ½ “) = 0”) +(0’-4 ½ “) =

22’-½“22’-½“ Columns 3 3’-0” - 8’-6” 25.50

sft76.5 sft

L = (0’-9”) + (0’-9”) + (0’-9”) + (0’-9”) = 3’-0 ”

Long beam (internal side)

1 22’-4 ½” - 1’-6” 33.55 sft

33.55 sft

Long beam (soffit) 2 10’-9 ¾” - 0’-9” 8.10 sft

16.21 sft

L={(22’-4 ½”)-(0’-9”)}/2=10’-9¾”

Short beam (internal sides)

2 7’-3” - 1’-6” 10.87 sft

21.74 sft

L={(8’-0”)-(0’-9”)} L={(8’-0”)-(0’-9”)} = 7’-3”= 7’-3”

Short beam (soffit)

2 7’-3” - 0’-9” 5.43 sft

10.87 sft

Door jambs 2 0’-9” - 7’-0” 5.25 sft

10.50 sft

2 0’-4½” - 7’-0” 2.63 sft

5.25 sft

1 0’-9” - 4’-0” 3.0 sft 1.50 sft1 0’-4½” - 4’-0” 1.50

sft3.00 sft

Window jambs 6 0’-9” - 4’-0” 3.00 sft

18.00 sft

6 0’-9” - 4’-0” 3.00 sft

18.00 sft

Ventilator jambs 8 0’-9” - 2’-6” 1.88 sft

15.00 sft

8 0’-9” - 1’-6” 1.19 sft

9.00 sft

Shelves 4 0’-6” - 5’-0” 2.5 sft 10.00 sft4 0’-6” - 4’-0” 2.0 sft 8.00 sft

Outer sideRear wall (From 6” below G.L. to Parapet walls)

1 23’-10 ½”

- 15’-10½”

379.00 sft

379.00 sft

H = (0’-6”) + (1’-6”) + (12’-0”) + (0’-4”) + (0’-4’’) + (0’-1”) + (0’-1½”) + (1’-0”)= 15’-10½”

Left & Right side wall

2 13’-6” - 15’-10½”

214.32 sft

428.64 sft

L= (12’-0”) + (0’-9”) + (0’-9”)= 13’-6”

Front side (above verandah roof)

1 23’-10 ½”

- 3’-0”

71.63 sft

71.63 sft

H = (12’-0”) + 0’-10½”) + (1’-0”) - (10’-10 ½” )= 3’-0”

Left & Right side plinth of verandah

2 8’-0” - 2’-0”

16.00 sft

32.00 sft

H = (1’ – 6’’) + (0’ – 6’’) = 2’ – 0’’

Parapet wallInner side of rooms

2 22’-4 ½”

- 1’-0”

22.37 sft

44.70 sft

L = (10’-0”)+(12’-0”)L = (10’-0”)+(12’-0”)+(0’-4 ½ “) +(0’-4 ½ “) = 22’-4 ½ “= 22’-4 ½ “

2 12’-0” - 1’-0”

12.00 sft

24.00 sft

Inner side of Verandah

1 22’-4 ½”

- 1’-0”

22.37 sft

22.37 sft

2 7’-3 “ - 1’-0”

7.25 sft

14.50 sft

Outer side of Verandah

1 23’-10 ½”

- 3’-4 ½”

67.66sft

67.66 sft

H = (1’-6”)+(0’-4”)H = (1’-6”)+(0’-4”)+(0’-6 ½”) + (1’-0 +(0’-6 ½”) + (1’-0 “) “) = 3’-4 1/2= 3’-4 1/2////

2 8’-0” - 2’-10”

22.67 sft

45.33 sft

Top of parapet wall (Rooms)

2 23’-10 ½”

- 0’-9”

17.9 sft

35.80 sft

2 12’-0” - 0’-9”

9.00 sft

18.00 sft

Top of parapet wall (Verandah)

1 23’-10 ½”

- 0’-9”

17.90 sft

17.90 sft

2 7’-3” - 0’-9”

5.43 sft

10.87 sft

StepsTread 2 23’-10 ½” - 1’-0” 23.87

sft47.74 sft

Riser 3 23’-10 ½” - 0’-6” 11.93 sft

35.80 sft

Sides 2 2’ – 00’’ 0’-6” 1.00 sft 2.00 sft2 1’ – 00’’ 0’-6” 0.5 sft 1.00 sft

Total= 3316.07 sft

Deduction Doors 2 4’-0’ - 7’-0” 28.00

sft56.00 sft

Windows 3 4’-0’ - 4’-0” 16.00 sft

48.00 sft

Ventilators 4 2’-6” - 1’-6” 3.75 sft 15.00 sftTotal= 119.00 sftNet Total=

3197.07 sft

14 Wood work as in (i) 1 ½” thick wooden doors with chowkat,.

2 4’-0’ - 7’-0” 28.00 sft

56.00 sft

Total = 56.00 sft(ii) Glazed and gauzed windows and ventilators.

3 4’-0’ - 4’-0” 16.00 sft

48.00 sft

4 2’-6’ - 1’-6” 3.75 sft

15.00 sft

Total = 63.00 sftG.Total =

119.00 sft

15 Three coats of painting to doors , windows and ventilators

- - - - - .(2 x Qty of item No.14)= 238.0 sft

Total 238.00 sft

16 Three coats of distempering/ white washing to walls (Internal Side) Room No.1 (Long wall)

2 12’-0” - 12’-0”

144.00 sft

288.00 sft

Room No.1 (Short wall)

2 10’-0” - 12’-0”

120.00 sft

240.00 sft

Room No.1 (Ceiling)

1 10’-0” - 12’-0”

120.00 sft

120.00 sft

Room No.2 (Long wall)

2 12’-0” - 12’-0”

144.00 sft

288.00 sft

Room No.2 (Short wall)

2 12’-0” - 12’-0”

144.00 sft

288.00 sft

Room No.2 (Ceiling)

1 12’-0” - 12’-0”

144.00 sft

144.00 sft

Verandah wall 1 23’-10 ½”

- 10’-0”

238.75 sft

238.75 sft

Verandah Ceiling 1 22’-4 ½” - 7’ –3”

162.26 sft

162.26 sft

Columns 3 3’-0” - 8’-6” 25.50 sft

76.50 sft

Long beam (sides) 1 22’-4 ½” - 1’-6” 33.55 sft

33.55 sft

Long beam (soffit) 2 10’-9 ¾” - 0’-9” 8.10 sft 16.21 sft L= {(22’-4 ½”)-(0’-9”)}/2 = 10’-9¾”

Short beam (sides) 2 7’-3” - 1’-6” 10.87 sft

21.74 sft

Short beam (soffit)

2 7’-3” - 0’-9” 5.43 sft 10.87 sft

Door jambs 2 0’-9” - 7’-0”

5.25 sft

10.50 sft

2 0’-4½”

- 7’-0”

2.63 sft

5.25 sft

1 0’-9” - 4’-0”

3.0 sft

1.50 sft

1 0’-4½”

- 4’-0”

1.50 sft

3.00 sft

Window jambs 6 0’-9” - 4’-0”

3.00 sft

18.00 sft

6 0’-9” - 4’-0”

3.00 sft

18.00 sft

Ventilator jambs 8 0’-9” - 2’-6”

1.88 sft

15.00 sft

8 0’-9” - 1’-6”

1.19 sft

9.00 sft

Shelves 4 0’-6” - 5’-0”

2.5 sft

10.00 sft

4 0’-6” - 4’-0”

2.0 sft

10.00 sft

Total =

2017.16 sft

DeductionDoors 4 4’-0’ - 7’-

0”28.00 sft

112.00 sft

Windows 4 4’-0’ - 4’-0”

16.00 sft

64.00 sft

Ventilators 6 2’-6” - 1’-6”

3.75 sft

22.50 sft

Total=

142.5 sft

Net Total =

1874.66 sft

17 Three coats of Weather shield paint to walls. (External side)Rear wall 1 23’-10

½”- 15’-4½” 367.07

sft367.07 sft H = H = ={(15’-10

½”)-(0’-6”) = 15’-4 1/2”

Left & Right side wall

2 13’-6” - 15’-4½” 207.5 sft

415.13 sft

Front side (above verandah roof)

1 23’-10½” - 3’-0” 71.63 sft

71.63 sft

Left & Right side wall of verandah

2 8’-0” - 2’-0” 16.00 sft

32.00 sft

Parapet wallInner side of rooms

2 22’-4 ½” - 1’-0” 22.37 sft

44.70 sft

2 12’-0” - 1’-0” 12.00 sft

24.00 sft

Inner side of Verandah

1 22’-4 ½” - 1’-0” 22.37 sft

22.37 sft

2 7’-3” - 1’-0” 7.25 sft

14.50 sft

Outer side of Verandah

1 23’-10½” - 2’-10½ ”

67.66 sft

67.66 sft

2 8’-0” - 2’-10½ ”

22.67 sft

45.32 sft

Top of parapet wall (Rooms)

2 23’-10 ½”

- 0’-9” 17.9 sft

35.80 sft

2 12’-0” - 0’-9” 9.00 sft

18.00 sft

Top of parapet wall (Rooms)

1 23’-10 ½”

- 0’-9” 17.90 sft

17.90 sft

2 7’-3” - 0’-9” 5.43 sft

10.87 sft

Total= 1186.95 sft

Deduction

Windows 2 4’-0’ - 4’-0”

16.00 sft

32.00 sft

Ventilators 2 2’-6” - 1’-6”

3.75 sft

7.50 sft

Total=

39.50 sft

Net Total=

1147.45 sft

ABSTRACT OF QUANTITIESABSTRACT OF QUANTITIES

1- CALCULATIONS1- CALCULATIONS

1. Excavation in Medium soil

Quantity from BOQ item No. 1

Output of one labourer working 8 hrs

04 labourers are required for 3 ½ days to excavate 1050 cft earth.

=

=

1024.52 cft

75 cft

2. PCC (1:4:8)Quantity of BOQ item No.3 (Foundations) = 146.27 cftQuantity of BOQ item No.11 (Floors) = 142.07 cft Total

= 288.34 cft

Note:

Dry material for 100 cft of cement concrete

= 154 cft

Materials(i) Cement=154x1x288.34/(100x13) = 34.15cft(ii) Sand=154x4x288.34/(100x13) = 136.62 cft(iii) Coarse aggregate =154x8x288.34/(100x13)

= 273.25 cft

3. Ist Class Burnt brick work in foundation in cement sand mortar (1:6)Quantity of BOQ item No.4 = 484.21

cft

Note: Bricks for 100 cft of brick work = 1350 Nos.Dry mortar for 100 cft of brik work = 30 cft

Material (i) Bricks=1350x484.21/100 = 6537 Nos.(ii) Cement=30x1x484.21/(7x100) = 20.75 cft(iii) Sand=30x6x484.21/(7x100) = 124.51cft

4. 1 ½” thick PCC (1:2:4) in DPC including two coats of hot bitumen & 2 sheets of Polythene.Quantity of BOQ item No.5=55.50x0.125 = 6.93 cft

Note: (i) Dry material for 100 cft of cement concrete

= 154 cft

(ii) Bitumen for 100 sft of DPC (first coat)

= 15 Kg

(iii) Bitumen for 100 sft of DPC (second coat)

= 10 Kg

Material (i) Cement=154x1x6.93/(100x7) = 1.52 cft(ii) Sand=154x2x6.93/(100x7) = 3.04 cft(iii) Coarse aggregate=154x4x6.93/(100x7)

= 6.09 cft

(iv) Bitumen =25x55.50/100 = 13.87 Kg(v) Polythene Sheet (2 x 55.5) = 111.0 sft

5. Ist Class Burnt brick work in Super structure in cement sand mortar (1:4)

Quantity of BOQ item No.6 = 743.17 cft

Note: (i) Bricks for 100 cft of brick work = 1350 Nos.

(ii) Dry mortar for 100 cft of brik work = 30 cft

Material

(i) Bricks=1350x743.17/100 = 10033 Nos.

(ii) Cement=30x1x743.17/(5x100) = 44.59 cft

(iii) Sand=30x4x747.13/(5x100) = 178.36 cft

6. Reinforced cement concrete (1:2:4) Quantity of BOQ item No.7 = 226.39

cft

Note: Dry material for 100 cft of cement concrete

= 154 cft

Materials(i) Cement=154x1x226.39/(100x7) = 49.80

cft(ii) Sand=154x2x226.39/(100x7) = 99.61

cft(iii) Coarse aggregate =154x4x226.39/(100x7)

= 199.22 cft

(Note:

(iv) Mild steel round bars

1 Kg = 0.454 lbs)

==

1529 lbs 693.55 Kg

7. Roof insulationQuantity of BOQ item No.9 = 430.72 sft

Note: (i) Brick tiles for 100 sft roof insulation

= 360 Nos.

(ii) Dry mortar for 100 sft = 9.00 cft(iii) Bitumen for 100 sft of DPC (first coat)

= 15 Kg

(iv) Bitumen for 100 sft of DPC (second coat) = 10 KgMaterial (i) 1 ½” thick brick tiles = 1551 Nos.(ii) Cement=9x1x430.72/(4x100) = 9.69 cft(iii) Sand=9x4x430.72/(4x100) = 29.07 cft(iv) Bitumen =430.72/100 = 107.68 Kg(v) Mud /Earth filling=430.72x0.42 = 180.90 cft(Vi) Polythene sheet (2 x 430.72) = 862 sft

8. Sand under floorsQuantity of BOQ item No.10 = 213.11

cftMaterial Sand = 213.11

cft9. 1 ½” thick cement concrete (1:2:4)

in floors Quantity of BOQ item No.12=457.80x0.125

= 57.23 cft

Note: (i) 1 ½” = 0.125 ft(ii) Dry material for 100 cft of cement concrete

= 154 cft

Materials(i) Cement=154x1x57.23/(100x7) = 12.59 cft(ii) Sand=154x2x57.23/(100x7) = 25.18 cft(iii) Coarse aggregate =154x4x57.23/(100x7)

= 50.36 cft

10. 1/2” thick cement plaster in cement sand mortar (1:3)Quantity of BOQ item No.13 = 3197.07 sft

Note: Dry mortar for 100 sft of ½” thick cement plaster

= 6 cft

Material(i) Cement=6x1x 3197.07/(4x100) = 47.96 cft(ii) Sand=6x3x 3197.07/(4x100) = 143.87 cft

11. Wood work in door, windows ventilatorsQuantity of BOQ item No.14 (i) Doors = 56.00 sftQuantity of BOQ item No.14 (ii) Windows = 63.00 sft

Note: (i) Timber for 100 sft of Panelled Doors = 13 cft (ii) Timber for 100 sft of Glazed windows and Ventilators = 8 cft

Material(i) Timber for doors =13x56/100 = 7.28 cft(ii) Timber for windows and Ventilators =8x63/100

= 5.04 cft

Total

= 13.32 cft

12. White wash / DistemperQuantity of BOQ item No.16 = 1872.9

sftNote: Lime for 100 sft of white wash (one

coat)= 1.00 Kg

Material Lime for three coats=1x3x1872.9/100 = 56.24 Kg

13. Weather ShieldQuantity of BOQ item No.17 = 1143.45

sft

14. Earth filling under floors Quantity of BOQ item No.2 = 230.87

cft

Material Earth for filling = 230.87

cft

2- SUMMARY2- SUMMARY S.No. Description of material Quantity

1. Cement(From 2,3,4,5,6,7,9,10)

220.68 cft or177 Bags

2. Sand (From 2,3,4,5,6,7,9,10)

740.26 cft

3. Coarse aggregate(From 2,4,6,9)

528.92 cft

4. Mild steel round bars (item No: 6) 693.55 Kg5 Burnt bricks 1st class

(From 3,5) 16570 Nos.

6 1/2” thick Brick tiles (item No: 7) 1551 Nos.7 Bitumen

(From 4,7) 121.55 Kg

8 Polythene sheet(From 4,7)

973 sft

9. Timber (item No: 11)

13.32 cft

10. Lime (item No: 12)

56.24 Kg

11. Mud/Earth filling(From 7,13)

411.77 cft