Long Wall Short Wall Method

The long wall short wall methods are used to estimate the quantity of different work. In this method, the longer walls in a building (generally in one direction) are considered as long walls and measured from out to out and the shorter walls in a perpendicular direction to the long walls are considered as short walls and are measured from in- to-in for a particular layer of work.

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Long Wall Short Wall Method Of Estimation

The following is an example of a long wall short wall method for estimation of one room as give below,

Length of a short wall into in= Centre to center length â€“ Half breadth one side â€“ Half breadth on another side.

Centre to centre length of long wall

= 4+ 0.45 + 0.45

=4.9m

Centre to centre length of short wall

= 3+ 0.45+ 0.45

= 3.9 m

Length for excavation:

=4.9 + 0.90

= 5.8 m

3.9 + 0.9

4.8m

Long wall

1st footing length = 4.9+0.6

= 5.5m

2nd Footing length = 4.9 + 0.5

= 5.4m

Plinth wall length = 4.9 + 0.4

=5.3 m

Short Wall

1st Footing length = 3.9 â€“ 0.6

=3.3m

2nd footing length = 3.9 â€“ 0.5

=3.4m

Plinth wall = 3.9 â€“ 0.4

= 3.5m

Long wall= 4.9 + 0.3

= 5.2m

Short Wall= 3.9 â€“ 0.3

= 3.6m

Example Of Long Wall Short Wall Method

long wall short wall method solved examples

Important Notes

1. The area of ventilation is less than 0.5 sq m, therefore no deduction is made.
2. For Doors, Half the number of faces is deducted.
3. For calculation of internal plaster, inner doors have two faces and the external door has one inner face
4. For calculation of internal plaster, windows have one internal face.
5. for windows, half the number of faces is deducted.

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