Div 21 — Fire Suppression
Fire Protection
Sprinkler mains, branch lines, heads and related fire alarm interface work.
What this covers
- /Mains, risers and branch lines
- /Sprinkler heads and escutcheons
- /Hangers, seismic bracing and sleeves
- /Backflow and valve assemblies
- /Hydraulic calculations and testing
How it factors into your estimate
- Head counts use a coverage-area rule of thumb per head at the stated hazard classification.
- Hydraulic calculations by a fire protection engineer are required before installation.
- Permits, AHJ review and witnessed testing are always part of the scope.
Labor intensity used by the estimator: 0.03 hours per square foot, adjusted for residential, commercial or industrial work. You can replace the hourly rate and every material price with your own numbers on the Trade Costs page.
Want a price for fire protection on your job? Send the address, square footage and scope.
Other trades