How to Calculate Foundation Concrete
Wall Volume: Perimeter x Thickness (ft) x Height (ft) / 27
Footing Volume: Perimeter x Width (ft) x Depth (ft) / 27
Total: (Wall + Footing) x (1 + Waste factor)
Standard Foundation Sizes
- Residential wall: 8" thick, 8' high (standard basement)
- Footing: 2x wall width, 8" deep minimum
- Rebar: Horizontal every 2 courses, vertical every 4 ft