No deductions is made in the masonry for the openings if the area of the opening does not exceed.
1). 0.5 m2
2). 0.25 m2
3). 0.15 m2
4). 0.10 m2
No deduction is made for following masonry works measurements:
(1) Opening each up to 1000sq cm 0.1 square meter
(2) Ends of beams, post, rafters, etc. up to 500 sq.cm or 0.05 sq.m in section.
(3) Bed plate, wall plate, bearing of balcony (chajja) and the like up to 10 cm depth. Bearing of floor and roof slabs are not deducted from masonry.