Sprinkler Density Calculator 📊

Calculate sprinkler design density and area per NFPA 13 occupancy classification.

📊 Occupancy Classification

📊 Results

📊

Select hazard class and click Calculate

HazardDensity (gpm/ft²)Area (ft²)
Light0.101,500
OH-10.151,500
OH-20.201,500
EH-10.302,500
EH-20.402,500

📚 References

Related calculators

Sewage Pump StationDesign sewage lift stations and wet wellsPlumbingDuct Size CalculatorSize round and rectangular ducts using velocity or equal friction methodHVACFire Hydraulic CalculatorHazen-Williams friction loss and pressure calculationsFire FightingCCTV Storage CalculatorCalculate NVR hard disk size (TB) from cameras, resolution, FPS, H.264/H.265 & retention days — with bandwidth & HDD suggestionsBMS & ELVSprinkler K-FactorCalculate sprinkler flow and pressure using K-factorFire FightingFM200 & CO₂ CalculatorCalculate clean agent quantities for protected spacesFire FightingWater/Fire Tank SizeSize fire water storage tanks based on demandFire FightingSolar PV System SizeSolar array kWp, number of panels, battery and inverter sizeElectrical