Recessed Lighting Layout: How Many Lights and Where to Put Them
Badly laid out recessed lighting is the most common lighting mistake we are asked to fix. The fixtures are fine; the plan was wrong. Here is how to get it right before anyone cuts a hole.
Spacing: start with half the ceiling height
For general lighting, space fixtures roughly half the ceiling height apart. An eight-foot ceiling gives you about four feet between lights. Then adjust for the room.
Keep off the walls
Two to three feet from the wall for the outer row. Closer than that and you get scalloping on the wall; further and the room's edges go dark and the ceiling looks like a runway.
Light the task, not the floor
Over a kitchen island, centre the fixtures on the island rather than on the room. Over a countertop, pull them forward so you are not standing in your own shadow. This single adjustment does more for a kitchen than adding fixtures.
Beam angle matters more than wattage
A narrow beam (around 25 degrees) makes a pool of light and works for accents. A wide beam (60 degrees or more) is what you want for general illumination. Mixing them in one room without a plan is how you get patchy light.
Colour temperature
2700K is warm and residential. 3000K is a touch crisper and works well in kitchens and baths. 4000K reads as clinical in a living room but is right in a garage or workshop. Pick one per open space — mixing temperatures in a sightline is instantly noticeable.
Dimming: choose the dimmer for the driver
Most flicker and buzz complaints come from an LED-incompatible dimmer, not the fixtures. Use an LED-rated dimmer, check the minimum load, and keep to one fixture family per circuit where you can.
Layer it
Recessed lighting alone is flat. Add under-cabinet, a pendant or two, or a lamp circuit on a switched receptacle, and put them on separate controls. Rooms with two or three lighting layers feel finished; rooms with one do not.
Practical notes for older Alabama homes
Canless LED fixtures are a huge advantage in retrofits — the housing is shallow, which matters under low attic clearance, and the cut-in is small. Insulation contact ratings matter if the attic is blown-in. And check for joists before you commit to a layout; a plan that ignores framing gets redrawn on the day.
We lay out and install recessed lighting statewide — see lighting installation or call (888) 633-7804.