Enter room length and width plus your target spacing — fixture count and the actual even grid solve live.
Rule of thumb: half the ceiling height.
Can, trim, and bulb.
Labor (optional)
Fixture count
6
FIXTURES
Bill of materials+0% waste
Recessed fixtures
5.33 ft × 6 ft actual grid
Net 3 cols × 2 rows · Waste —
Cost projection
Saved on this device · No account · No cloud
Fixture count
6 fixtures
Even grid: columns = round(length ÷ target spacing), rows = round(width ÷ target spacing) — a 16×12 ft room at 5 ft target gets 3 × 2 = 6 fixtures.
Enter room length and width plus your target spacing — fixture count and the actual even grid solve live.
Rule of thumb: space cans about half the ceiling height apart — 4–5 ft for 8–9 ft ceilings, 6 ft for 10 ft ceilings.
Keep the first row half a spacing from the wall so corners don't go dark.
Actual spacing is recomputed from the even grid, so fixtures land on a clean layout.
Rows = W ÷ spacing, Cols = L ÷ spacing
It depends on room size and target spacing — a 16×12 ft room at 5 ft spacing needs 3 columns × 2 rows = 6 fixtures. Enter your room dimensions and the tool computes the count plus the actual even grid.
Rule of thumb: space cans about half the ceiling height apart — 4 ft for 8 ft ceilings, 5–6 ft for 9–10 ft ceilings. The tool recomputes actual spacing from the even grid so fixtures land on a clean layout.
Half the fixture spacing — about 2–3 ft — so walls get an even wash without dark corners.
At 5 ft target spacing: 3 columns × 2 rows = 6 fixtures on a 5.3 × 6 ft actual grid.
Yes — even spacing avoids bright and dark patches. The tool rounds your target spacing into a whole number of columns and rows, then recomputes the actual spacing so every fixture lands on a clean grid.
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