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Recessed Lighting Layout

How many can lights, how far apart, and how far off the wall.

Sets how bright the space should be

On the box — 800 lm ≈ a 60W bulb

How many can lights a room needs, how far apart to space them, and how far to keep them off the walls — so you get even light instead of a runway or a cave.

How it works

The standard starting point is to space lights at roughly half the ceiling height: an 8-foot ceiling wants lights about 4 feet apart. The outer lights go about half that spacing from the wall — around 2 feet — which puts light on the walls rather than leaving dark edges. The room's dimensions then determine how many rows and columns that spacing produces.

Example

A 12 × 14 foot room with an 8-foot ceiling: lights about 4 feet apart, roughly 2 feet off the walls — which works out to a 3 × 4 grid, so 12 lights.

Tips & common mistakes

Frequently asked questions

How far apart should recessed lights be?

About half your ceiling height — so roughly 4 feet apart on a standard 8-foot ceiling.

How many recessed lights do I need in a 12x14 room?

About 12, in a 3 × 4 grid, on an 8-foot ceiling. Fewer if the room has other lighting; more if it is the only light source.

How far from the wall should recessed lights be?

2 to 3 feet. Closer and you scallop the wall with bright arcs; further and the edges of the room go dark.