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Footing Size
Size an isolated column footing from column load and soil bearing pressure, with thickness and bottom steel.
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About this calculator
Get a preliminary square footing size, depth and steel for a column.
How it's calculated
- Area = 1.1 P / qa
- Depth from punching & one-way shear (ACI 318)
Results are calculated from the values you enter using standard formulas. Download the PDF to keep a record. For certified testing, design or construction, talk to our engineers.
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