Calcolatore Plinto di Fondazione — Formula
## Footing Sizing
**Footing Area = Total Load / Soil Bearing Capacity**
The bearing capacity depends on soil type: soft clay 1,000 psf, medium clay/loose sand 2,000 psf, dense sand/gravel 3,000-4,000 psf, bedrock 8,000+ psf. Always get a soil test for structural footings.
**Footing Area = Total Load / Soil Bearing Capacity**
The bearing capacity depends on soil type: soft clay 1,000 psf, medium clay/loose sand 2,000 psf, dense sand/gravel 3,000-4,000 psf, bedrock 8,000+ psf. Always get a soil test for structural footings.
Esempio Risolto
20,000 lb column load on soil with 2,000 psf bearing.
- Area = 20,000 / 2,000 = 10 sq ft
- Square footing = sqrt(10) = 3.16 ft per side
- Use a 3.5 x 3.5 ft footing (12.25 sq ft) for safety.