Water Spray Density Calculator
Calculate design density based on hazard per NFPA 13.
NFPA 13 Density/Area Curves
| Hazard | Density (GPM/sq ft) | Area (sq ft) |
|---|---|---|
| Light | 0.10 | 1,500 |
| OH-1 | 0.15 | 1,500 |
| OH-2 | 0.20 | 1,500 |
| EH-1 | 0.30 | 2,500 |
| EH-2 | 0.40 | 2,500 |
Values shown are minimum points on density/area curves.