The document discusses using the center line method to calculate quantities of materials for construction projects. It provides an example of calculating the brick work and PCC quantities for a wall by finding the center line length of the wall, multiplying by the width and depth, and accounting for deductions from openings like doors and windows. The total quantities calculated are 17.49 cubic meters of brick work and 4.24 cubic meters of PCC.

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SESSION: 02 CENTRE LINE METHOD
Example:
1. Find out quantities of following items of work (See fig. No. 1)
i. Superstructure Brick work ii. PCC
Wall thick-0.3 m
Procedure:
Calculate the centre line length of the wall, and then multiply it with the breadth and depth
of the wall to find out quantity.
= 5.3+5.3+5.5+5.3 = 21.2 m
Measurement sheet: center line method
Sr.no.
Work description Unit No’s Length Width Height/Depth Quantity Total
Quantity
1.0 Superstructure
Brick work
M3 1 21.2 0.3 2.75 17.49
Deduction
i. Door M3 1 1.2 0.3 2.1 0.756
ii. Window M3 4 1.2 0.3 1.0 1.44 15.294

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2.0 PCC
M3 1 21.2 1 0.2 4.24