Snow Load Calculator
Estimate the snow load on your roof in pounds per square foot (psf) based on snow depth and snow density. Compare against common building code limits and see the total weight on your roof area.
Inputs
Fresh: 3-7, Settled: 10-20, Packed: 20-40, Ice: 50+
Flat=0, Standard=4-8, Steep=10+
Results
Ground Snow Load
15.0 psf
Roof Snow Load
8.3 psf
Total Weight on Roof
11,125 lbs
5.6 tons
Roof Area
1342 sq ft
Snow Load Reference by Depth & Type (psf)
| Snow Depth | Fresh (5 lb/ft3) | Settled (15 lb/ft3) | Packed (30 lb/ft3) |
|---|---|---|---|
| 6" | 2.5 | 7.5 | 15 |
| 12" | 5 | 15 | 30 |
| 18" | 7.5 | 22.5 | 45 |
| 24" | 10 | 30 | 60 |
| 36" | 15 | 45 | 90 |
| 48" | 20 | 60 | 120 |