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Foundation Calculator

Calculate concrete, rebar, and materials for slab foundations and footings. Enter dimensions and get estimates.

Foundation Dimensions

ft
ft
%

Materials Needed

Concrete Volume 0 yd³
80lb Bags (Quickcrete) 0 bags
#4 Rebar (Linear Feet) 0 LF
Rebar #4 (20' sticks) 0 sticks
Wire Mesh 0 rolls
Note: Concrete calculated at 3,000 PSI mix. Rebar placed both directions on 18" centers. Add gravel base and vapor barrier separately.

Common Foundation Types

4" Slab Patios, walks
6" Slab Garages, driveways
Strip Footing Wall foundations
Spread Footing Columns, posts

Always check local codes. Add gravel, vapor barrier, and control joints as needed.