# Measurement and Cost Estimating Harvard Case Solution & Analysis

## Measurement and Cost Estimating Case Study Solution

### Sections of Bill of Quantity (BOQ)

The bill of quantity consist of six main sections, each section is briefly explained below.

### Item Number in Bill of Quantity (BOQ)

It is not easy to memorize each and every item used in the project and entered in the bill of quantity, therefore we assign every item a particular item number which makes easy to recall the item at the time of need.

### Item Description in Bill of Quantity (BOQ)

In this section a detailed description of each item is given this this the most important part of and considered as the heart of bill of quantity (BOQ), this part is of great importance a requires special attention because if a single word is misprint or miss typed it may result as a big financial loss and many companies has suffered from this mistake during various projects.

### Unit of measurement in Bill of Quantity (BOQ)

This section is also of great importance while filling a tender for a project because the unit in which you prepare your bill of quantity can vary the overall project cost lets understand this by an example suppose a vendor gives you the rate of tiles in terms of square feet and the other tender gives you the rate of tiles in terms of square meter so there is a measurable difference between both units and you have to kept this thing in mind while analyzing the project budget given by each vendor.

### Quantity of each item in Bill of Quantity (BOQ)

As indicated by name this section deals with the quantity of each item and material required in the project.

### Rate of every item in Bill of Quantity (BOQ)

This section is quite important and requires patience while reading the rate of each item and carefully analyze that the rate of each specific item is with its accessories or without accessories.

### Total amount in Bill of Quantity (BOQ)

This section contains the total amount of all the items and materials with their actual quantity the total amount of each item is calculated as (Total amount= Total quantity*Price of each unit)  the total amount for all  the items is added at last to compute the overall amount of each and every item.

### Bill No-1 (Substructure)

The take-off list for substructure containing all the steps to be include in sequential manner .Take-off list

• Site preparation removal of top soil. 5- Retain excavated material on the site.
• Retain excavated top soil in temp soil 6- Concrete in foundations.

Heap.                                                        7- Brick work in skins of hollow wall.

• Excavating foundations. 8- Block work in skins of hollow wall.
• Disposal of the excavated material 9- Forming cavity.

Of the site.                                               10- Insitu concrete filling to hollow walls.

11- Imported filling hardware bed 150 mm

thick.

12- Damp proof membrane.

13- Filling obtained from evacuated material.

14- Insitu concrete slab 150 mm thick.

15- Cavity insulation.

• Damp proof course.
• Filling the top soil.

### Amount

1.1.1

1.1.1.1

1.1.1.2

1.1.1.3

1.1.1.4

1.1.1.5

1.1.1.6

1.1.1.7

1.1.1.8

1.1.1.9

 1.1.1.1.10           1.1.1.11

Substructure Foundations

 Excavation, commencing 300 mm below existing ground level; foundation excavations not exceeding 2 m in depth

 Disposal of excavated material off site

Plain insitu concrete; horizontal work, not exceeding 300 mm thick in structures; poured on or against earth

 Plain insitu concrete; vertical work in lean concrete filling to hollow walls not exceeding 300 mm thick in structures

 Filling obtained from excavated material, final thickness of filling exceeding 500 mm deep from trench excavation

Walls: Substructure

 100 mm thick lightweight concrete block work in skins of hollow walls, laid in stretcher bond and bedded in cement mortar

 Half brick thick facing bricks in skins of hollow walls; laid in stretcher bond and bedded in mortar, flush pointed

 Half brick thick commons in skins of hollow walls; laid in stretcher bond and bedded in mortar, flush pointed

Cavity insulation; 50mm thick rigid board

Forming cavities 75mm wide; stainless steel ties @ 6nr/m2, built in as work proceeds

 Damp proof courses not exceeding 300 mm wide, hi load pitched polymer bedded in mortar; horizontal and lapped with DPM

18

13

5

2

5

28

5

24

3

2

68

6.46

27.73

113.48

100

30

13.50

61.00

55.00

47.52

1.80

3.00

116.28

360.49

567.40

200

150

378.00

305.00

1320

142.68

52.28

204.00

Total Bill of Substructure

3,796.05

### Amount

2.1.1

2.1.1.1

2.1.1.2

2.1.1.3

2.1.1.4

2.1.1.5

2.1.1.6

2.1.1.7

2.1.1.8

Super-Structure

A block walls 150 mm thick

In cement mortar (1:3)

Concrete column C30 material.

Reinforced concrete slab

125mm thick.

Concrete Slab

Steel rod 16 mm in diameter

Timber beams for columns

Cantilever beam for concrete slab support

Doors with timber frame and

210.0

3.0

12.0

34.5

289.3

90

1218

4.0

mᵌ

kg

No

260

6000

6000

6500

50

50

35

2300

54,6000

18,000

72,000

224,250

14,250

45,000

42,630

92,000

Total bill of Super-Structure

1054,130

### Amount

3.1.1

3.1.1.1

3.1.1.2

3.1.1.3

3.1.1.4

3.1.1.5

3.1.1.6

3.1.1.7

3.1.1.8

3.1.1.9

3.1.1.10

Finishes

Electric cable for wiring

P.V.C pipe 12mm

Fitting for fluorescent

Security lights

Electric sockets

Control switches and ceiling

fan

Distribution box

Electrical Connection points

for lights and fans.

PVC pipes for bathroom

And kitchen

Tank and water supply

connection

7

4

8

8

16

8

9

15

21

3

Item

Item

No

No

No

No

No

No

Item

Item

7000

1200

250

250

100

700

650

230

410

335

49000

4800

2000

2000

1600

5600

5850

3450

8160

1005

Total bill of finishes

83,465

### Bill No: 4 (Provisional-Sum)

A provisional sum is defined as the actual cost estimated by the cost estimator consultant it is not necessary that the calculated provisional sum fits 100 % on the proposed structure there is always a range of tolerance because of factors involve in construction project. The provisional sum is the sum of total individual bill of quantity in our case the provisional-sum bill of quantity is the sum of sub-structure, super-structure and internal finishes bill of quantity, summing all the above quantities in order to get the provisional sum.

Total bill of sub-structure = 3,796.06

Total bill of super-structure= 1054,130

Total bill of finishes = 83,465

Total bill (Provisional-Sum) = 1141,391.05

### Conclusion

The report deals with step by step working of a rectangular house consist of two rooms the bedroom and living room, first of all the take-off is calculated lets revise again what is take-off. “Quantity take-off is a process in which calculations of building material and labor needed to complete a project is made, the calculation is made by experienced professional during the preconstruction phase, these estimators has developed many techniques in order to enhance quality work, the most important part to carry all the construction process smoothly with the given time.The quantity take-off is off great importance because it helps to measure the cost of various equipment and cost of labor in correspondence to material quantity and time. After that the bill of quantity is prepared for each section the sub-structure section, super-structure section and finishes after that the bill of quantity of all the sections is added in order to get the provisional sum of the whole project. The bill of quantity is the most important part of a project phase under process because it helps us to plan the cost of the overall project include labor, material and equipment charges used in the project, it also help us to design a work flow for construction planning step by step and moreover it also help us to manage material scheduling including the overall material requirement including the waste. The bill of quantity provides project contract administration, project tender comparison and controls the cost variation including the overhead and risk factor..........

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