High-Piled Combustible Storage Calculator

Determine requirements for high-piled combustible storage per IFC Chapter 32 and NFPA 13.

Input Parameters

Results

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High-Piled Storage
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Sprinkler Type Required
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Design Density
gpm/sq ft
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Max Permitted Height
ft
Note: High-piled storage requires a fire protection plan, automatic sprinkler system, and fire department access. Storage above 12 feet (or 6 feet for high-hazard) triggers IFC Chapter 32 requirements. ESFR sprinklers or in-rack sprinklers may be required for taller storage. Commodity classification per NFPA 13 determines sprinkler design.

Reference

IFC Chapter 32 High-Piled Combustible Storage: High-piled threshold: >12 ft (combustible), >6 ft (high-hazard) Commodity Classification (NFPA 13 Section 5.6): Class I: 0.20 gpm/ft2, max 40 ft Class II: 0.30 gpm/ft2, max 35 ft Class III: 0.35 gpm/ft2, max 30 ft Class IV: 0.45 gpm/ft2, max 30 ft High-Hazard: 0.60 gpm/ft2, max 25 ft Minimum aisle width: 8 ft per IFC 3206.9 EFSR K-25.2 for high-hazard plastics