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Why lighting installs are planned on paper first

Jan 25, 20252 min readBy Roy, RRJ Electric
Electrician sketching a lighting layout on paper with a tape measure and laser meter nearby

You can spot an unplanned lighting job from the doorway: cans in a row that follows the joists, a pendant that isn't centered over the island, a switch by the wrong door. Twenty minutes with a tape measure prevents all of it.

What the plan covers

  • Layout. Recessed lights spaced for even coverage, typically half the ceiling height apart, and centered on the room, not on the framing.
  • Switching. Which lights are on which switch, which need 3-way control from two doors, which get dimmers.
  • Circuits. Whether the existing lighting circuit can take the load or a new one is needed.
  • Access. Attic above or not, which decides between standard cans and wafer LEDs, and how much patching to expect.
  • Fixtures. Box ratings for fans and heavy fixtures, wet and damp ratings, and driver-dimmer compatibility for LED.

Commercial spaces

For shops, offices and lots, the plan adds fixture counts against required light levels, photocells and timers for exterior lighting, and a schedule that works around business hours.

What you get

A sketch, a written estimate, and no surprises. On install day the crew works from the plan, and the walkthrough at the end matches what you approved. One-year warranty on the parts and the work, like everything else we do.

Related service: Lighting Installation

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