Every room needs outlets. The NEC gives you two rules: one outlet within 6ft of every door, and one every 12ft around the perimeter after that. This tool makes those rules visible — place doors, watch the coverage update live.
Purpose: show that outlet count is a function of room geometry, not an arbitrary number. Bigger rooms and more doors mean more outlets. The heatmap shows exactly where coverage gaps are.
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max gap (ft)
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marginal
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Click inside the room to place or remove a door. Outlets auto-place per NEC rules.