ACI 318-19 Compliant
Foundation Design with Complete Structural Checks
Design spread footings with transparent bearing capacity, shear, and flexure calculations. See exactly how your footing resists loads according to ACI 318-19.
- ✓Bearing capacity verification
- ✓One-way shear check
- ✓Two-way (punching) shear check
- ✓Flexural reinforcement design
- ✓Footing size optimization
- ✓Pressure distribution display
7' × 7' × 18" Spread Footing
Column Load: 150 kips
Soil Capacity: 3.0 ksf
Bearing Pressure
Applied Pressure
3.06 ksf
q = P/A = 150 kips / (7 ft × 7 ft) = 3.06 ksf
Allowable: 3.0 ksf → Ratio = 1.02 (use larger footing)
Two-Way Shear Check (ACI 318-19)
Critical perimeter bo = 4(c + d) = 124 in
Vu = 136.5 kips
φVc = φ × 4λ√(f'c) × bo × d = 189 kips
Vu/φVc = 0.72 ✓ OK
Flexural Reinforcement
Required:#5 @ 12" o.c. each way
Provided As:2.58 in²