Dis 0.75 42 - 31.5 48 Opening Deduction NO LI) H(f) wlfl). ALL) 4 7 1 7 07 13.125 Da 6 7 0.75 y 4 4 0.75 Vi 1 3 0.75 3.375 &=138H = 138 cft. volume of brick in superstructure = 1730.25-130 Total volume of bore in = 1592.25 cft super struetuie - No. of bricks in super structure 1592.25x 13.5 (brick in super structure = 21496 bricks volume of opening Dis 0.75 42 - 31.5 48 Opening Deduction NO LI) H(f) wlfl). ALL) 4 7 1 7 07 13.125 Da 6 7 0.75 y 4 4 0.75 Vi 1 3 0.75 3.375 &=138H = 138 cft. volume of brick in superstructure = 1730.25-130 Total volume of bore in = 1592.25 cft super struetuie - No. of bricks in super structure 1592.25x 13.5 (brick in super structure = 21496 bricks volume of opening