Commercial & Industrial
High Bay Spacing Calculator
Calculate optimal fixture spacing for high bay warehouse and industrial lighting. Adjust inputs to see the floor grid update with coverage circles in real time.
Application Presets
Fixture & Room Inputs
Fixture Lumens  20000 lm
Mounting Height  20 ft
Target Footcandles  30 fc
Coefficient of Utilization (CU)  0.70
Light Loss Factor (LLF)  0.85
Room Width  80 ft
Room Length  120 ft
Floor Plan — Top View
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ft
Max Spacing
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Fixtures
Total Count
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fc avg
Achieved
—
W/sq ft
Est. LPD
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The calculators and tools on Formula Factory are provided for general guidance and informational purposes only. Results are estimates based on standard formulas and the values you enter — they do not constitute professional engineering, electrical, or architectural advice. Always verify calculations with a qualified professional before making decisions for any safety-critical, code-compliance, or commercial application. Formula Factory makes no representations or warranties as to the accuracy or completeness of any result, and accepts no liability for errors, omissions, or any outcomes arising from reliance on this information.