Foundation Calculator
Design spread footings and foundations based on column loads and soil bearing capacity.
Foundation Parameters
lbs
PSF
Typical: Soft clay 1000-2000, Medium clay 2000-4000, Dense sand 4000-6000
ft
PSI
ksi
Required Footing Size
15.0 x 15.0 ft
Area: 225.0 sq ft | Utilization: 100.0%
Allowable Bearing
667 PSF
Actual Bearing
667 PSF
Concrete Volume
33.33 cu yd
Punching Check
6.0%
Design Summary:
Footing Size15.0' x 15.0' x 4'
Effective Depth45.0"
Steel Required14.58 sq in
Punching Capacity2,484,470 lbs
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.