Intelligent Detector Layout Optimizer Calculator

Optimize addressable detector placement with compensated spacing per NFPA 72 and smooth ceiling rules.

Input Parameters

Results

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Detectors Required
units
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Actual Spacing
ft
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Coverage per Detector
sq ft
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Layout Configuration
Note: NFPA 72 Section 17.6 governs detector spacing. Intelligent/addressable detectors use same spacing rules as conventional. High ceilings, beams, joists, and HVAC diffusers all affect spacing. Smoke detectors limited to 30ft ceiling height per NFPA 72.

Reference

Smooth Ceiling: Spacing = Listed Spacing Smoke Detectors: 30ft base, reduced for high ceilings per NFPA 72 Table 17.6.3.5.1 Heat Detectors: 50ft (standard) or 70ft (high-temp) Beam Depth > 4": Spacing reduced per beam-to-ceiling ratio Grid: N_length = ceil(L/S), N_width = ceil(W/S) Total = N_length x N_width