Overhead Garage Rack Clearance Calculator
Check the space above and below a ceiling rack before a garage door, tote, or tall person finds the mistake for you.
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Your result
How this calculator works
The lower of the ceiling and obstruction heights sets the limit. We subtract the rack drop and platform thickness, then check tote space and headroom on their own.
Important limitationGeometry only. This tool does not verify joists, anchors, installation methods, seismic requirements, or structural load capacity. Follow the rack manual and obtain qualified advice where appropriate.