What is Unit?

The unit of measurement for any construction activities depend on the nature of work being done, shape and size. They are determinant of quantities of work being done. Following are the main principles for measuring units:

• Measurement is based on the finished item of work with detailed description of it.
• Following order should be maintained: Length, Breadth, Height/Thickness.
• Least dimensions should be:
• 0.01m in length
• 0.01 m² Sqft in area
• 0.01 m³ in volume
• 0.001 tons in weight

Item & Measuring Unit

1- Earthwork: It is measured in CUM or m3. This includes all types of excavation. Vegetation removal and other extra work is measured separately.

2- Backfilling: It is measured in CUM or m3. This includes all types of filling work (generally the excavated material). Vegetation It is measured removal and other extra work is measured separately.

3- Brickwork: It depends on how the bricks are laid.

• 4-Inch Brick work: It is measured in SQM or m2.
• 8-Inch Brick work: It is measured in CUM or m3.

*  There should be no deductions for small openings like pipe holes for scaffolding and openings less than 0.1 Sqm.

4- Stonework: Stonework is measured in CUM or m3.

* There should be no deductions for small openings like pipe holes for scaffolding and openings less than 0.1 Sqm.

5- Concrete work:

• Reinforced Cement Concrete: It is measured in CUM or m3.
• Plain Cement Concrete: It is measured in CUM or m3.
• Plum Concrete: It is measured in CUM or m3.
• Chip Packing: It is measured in RMT or m.

* There should be no deductions for volume of pipes or conduits smaller than 0.01 Sqm, volume of reinforcement bars and openings less than 0.1 Sqm.

6- Tile Flooring: It is measured in SQM or m2. It involves floor or wall tiling and any other types of tiling work.

7- Weathering Course: It is measured in SQM or m2.

8- Brick Bat Coba: It is measured in CUM or m3.

9- Plastering: It is measured in SQM or m2. Plaster work which is less than 30 cm in width will be measured in RMT. Openings smaller than 0.5 Sqm should not be deducted.

10- Painting: It is measured in SQM or m2. Openings smaller than 0.5 Sqm should not be deducted. It involves white washing, colouring, varnishing, Distempering.

11- Drip, string course and water coping: It is measured in RMT or m.

12- Glazing: It is measured in SQM or m2. Polishing and Rounding is measured in RMT.

13- Formwork:  It is measured in SQM or m2. Openings smaller than 0.4 m2 should not be deducted.

14- Centering & Shuttering: It is measured in SQM or m2. Openings smaller than 0.4 m2 should not be deducted.

15- Scaffolding: It is measured in SQM or m2 (if Height more than Cum) . Openings smaller than 0.4 m2 should not be deducted.

16- Door/ Window Framing: It is measured in Numbers.

17- Hume Pipe Installation: It is measured in RMT or m. And Rate will change with Diameter  This involves installation and testing.

18- Waterproofing work: It is measured in SQM or m2.

19- Hacking/ Roughening: It is measured in SQM or m2.

20- Fixing GI Mesh: It is measured in RMT or m.

21- Damp Proof Course: It is measured in SQM or m2.

22- Dismantling: It is measured in CUM or m3 & Sqm. m2 Both Depend upon Item.

23- Steel Work:

• Steel bars in RCC work: It is measured in Quintal.
• Bending/ Binding of steel: It is measured in Quintal.
• Rivets and Bolts: It is measured in Quintal.
• Iron Railings/ Grills / Insert Plate : It is measured in Quintal.

24- Pointing: It is measured in SQM or m2. Pointing work which is less than 30 cm in width will be measured in RMT. Openings smaller than 0.5 Sqm should not be deducted.

25- Piping: It is measured in RMT or m.

 

 

 

 

 

 

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