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L
L = x + 2c
a
a = y + 2c
Weight of Foundation

Safe Soil Bearing Capacity
½ Sb = (Wm + Wf) / b L
Volume of Foundation
Wf = pf Vf
Density of Foundation if not given
pf = 2406 kg/m3
Depth of Foundation
Vf = [(a+b)/2] x h x L
Ratio of Cement, Sand, Stone
1 Cement ; 2 Sand ; 4 Stone
Quantity of Cement, Sand, Stone
1 yd³ concrete → 6 sacks cement, 0.44 yd³ sand, 0.88 yd³ stone
Weight of Steel Bar
Ws = 0.005 Wf
Anchor Bolts
Anchor Bolt Depth = 30 (D_bolt)