Unit of Measurement in Civil Engineering Works

Unit of Measurement in Civil Engineering Works

Civil engineering involves the planning, designing, and construction of various structures, such as buildings, bridges, roads, and water supply systems. In order to accomplish these tasks, civil engineers use a variety of units of measurement.

Some of the most commonly used units of measurement in civil engineering include meters, feet, inches, millimeters, and centimeters for length, cubic meters, cubic feet, gallons, and liters for volume, and newtons, pounds, and kilograms for force.

These units of measurement are used to specify the dimensions, quantity, and properties of various construction materials and components.

All work shall be measured net subjected to the following tolerance unless otherwise stated.

IS Code: 1200 – Methods of Measurement of Works of Civil Engineering

1. Dimension shall be measured to the nearest 0.01 m.
2. The area shall be worked out to the nearest 0.01 sq. m.
3. Cubic content shall be calculated to the nearest 0.01 cu.m.
4. Weight shall be worked out to the nearest 0.001 tonnes.
5. The thickness of the RCC slab shall be measured to the nearest 0.005 m.
6. The thickness of the woodwork should be measured to the nearest 0.002m.
7. The thickness of steelwork shall be measured to the nearest 0.001m.
8. The length of the steel reinforcement bar shall be measured to the nearest 0.005 m and its diameter to the nearest 0.0001 m.
9. If the thickness of the road is less than 20m,m its thickness shall be measured to the nearest 0.005 m.
10. The area shall be measured to the nearest 0.01 sq. M., but the area of steel shall be measured to the nearest 0.0001 cu.m.
11. Volume shall be measured to the nearest 0.01 cu.m., but the volume of wood shall be measured to the nearest 0.001 cu.m.
12. Unless otherwise specified weights shall be measured to the nearest 0.001 kg.
13. Steel reinforcement in RCC work shall be measured separately in another item.
14. To achieve the desired accuracy in measurement length of the reinforcement bar is measured nearest to 0.001 kg
15. To achieve the desired accuracy in measurement thickness of the slab is measured at nearest to 1 mm.
16. Unless otherwise specified cubical contents shall be measured to the nearest 0.01 cu. m.

• The same type of work under different conditions and nature shall be measured separately under separate items e.g.
• Work underwater
• Work in liquid mud
• Work under tides
• Work in snow, etc.

In the case of structural concrete, brickwork, or stone masonry, the work under the following categories shall be measured separately and the height shall be described.

• From the foundation to the plinth
• From the plinth level to the first-floor level
• From the first-floor level to the second-floor level and so on,

The bill of quantities shall fully describe the material, proportion, and workmanship and accurately represent the work to be executed.

Basic Units of Measurement

Following are some basic units of measurement,

The seven SI base units are comprised of:

1. Length – meter (m)
2. Time – second (s)
3. Amount of substance – mole (mole)
4. Electric current – ampere (A)
5. Temperature – kelvin (K)
6. Luminous intensity – candela (cd)
7. Mass – kilogram (kg)

Read More: Construction cost of 1000 sq ft house in India

Units of Measurements for Various Types of Work

Civil engineering involves a wide range of units of measurement for various quantities. Here are some common units of measurement used in civil engineering:

A. Units Measurement of Materials

Sr. No.	Details of Material/ item	Unit of Measurement
1	Cement	Bag
2	Sand, Aggregate, Brickbats	Cu. m.
3	Bricks	Nos.
4	white cement	Kg
5	Slacked Lime	Quintal
6	Wood	Cu. m.
7	Reinforcement steel	Kg
8	G. I. Sheet	Kg
9	A.C. Sheet	Sq. m.
10	Steel Sections ( angles, channel, I- sections)	Kg
11	Adhesives	Kg
12	Turpentine, Primer, Varnish	Litre
13	Oil Paint	Litre
14	Water proof Ower, Distemper	Kg
15	Kotah Stone	Sq. m.
16	Mosaic Tiles	Sq. m.
17	W. C. Tub	No.
18	Nanhi Trap, Gully Trap	No.
19	GI Pipe, CI pipe, PVC Pipe	m
20	Rolling shutter	Sq. m.
21	Wire Grill	Sq. m.
22	Plywood Sheet	Sq. m.
23	Wash Basin	No.

B. Units of Measurement for Earthwork

Sr. No.	Details of Material/ item	Unit of Measurement
1	Earthwork in an excavation in ordinary Soil in Hard Soil in Muroom in Rock	Cu. m.
2	Surfacing Dressing	Sq. m.
3	Filling in plinth and Foundation	Cu. m.
4	Exaction for Pipe, cable, etc.	m

C. Units of Measurement for Brick Masonry / Stone Masonry

Sr. No.	Details of Material/ item	Unit of Measurement
1	Brickwork in foundation, plinth, and superstructure	Cu. m.
2	Brickwork in the partition wall	Sq. m.
3	Honeycomb brickwork	Sq. m.
4	Stone masonry, Random rubble masonry, coursed masonry	Cu. m.

D. Units of Measurement for Concrete Work

Sr. No.	Details of Material/ item	Unit of Measurement
1	Brickbat cement concrete (B. B. C.C.)	Cu. m.
2	P. C. C.	Cu. m.
3	R. C. C.	Cu. m.
4	Damp Proof Course(DPC)	Sq. m
5	Reinforcement Steel	Kg
6	Centering and Shuttering	Sq. m

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E. Units of Measurements for WoodWork

Sr. No.	Details of Material/ item	Unit of Measurement
1	Woodwork for Door Window frame	Cu. m.
2	Woodwork for Door/ Window shutters	Sq. m
3	Wooden floor	Sq. m

F. Units of Measurements for Steel Work

Sr. No	Details of Material/ item	Unit of Measurement
1	Steel Sections ( angles, channel, I- sections)	Kg
2	Steel Doors and Windows	Sq. m
3	Steel Gate	Sq. m
4	Steel Railing	m
5	Steel grill	Sq. m
6	Steel, C.I. Pipes	m

G. Units of Measurement for Roofing

Sr. No.	Details of Material/ item	Unit of Measurement
1	Tiled Roof	Sq. m
2	Country tile roof including bamboo jaffri	Sq. m
3	G.I. Sheet roof	Sq. m
4	Waterproofing of roof	Sq. m

H. Units of Measurements for Plastering, Pointing Finishing

Sr. No.	Details of Material/ item	Unit of Measurement
1	Cement Plaster	Sq. m
2	Pointing	Sq. m
3	Skirting	m
4	Dado	Sq. m
5	Whitewashing,	Sq. m
6	Painting of Doors, Windows	Sq. m
7	Painting of Letters	No

I. Units of Measurements for Flooring

Sr. No.	Details of Material/ item	Unit of Measurement
1	Tiles Flooring, Terrazzo Flooring	Sq. m
2	I.P.S. Flooring, Brick Flooring	Sq. m
3	Kotah Stone flooring, Marble Flooring	Sq. m

J. Units of Measurements for Miscellaneous Item

Sr. No.	Details of Material/ item	Unit of Measurement
1	Glazing Work	Sq. m
2	Plaster Repairing	Sq. m
3	Brick/ Stone Pitching	Cu. m
4	Fixing Frame to wall	None

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