22×22 room:
how many lights?
12–42fixtures A 22×22 ft room is 484 square feet. How many lights it needs depends entirely on what happens in it — a kitchen is lit to roughly twice the level of a bedroom, so the same footprint ranges from 12 to 42 fixtures at 800 lumens each.
The footprint does not decide the count. The target illuminance does, and that is set by what the room is for.
SOURCE·IES lumen-method recommendations·published recommendations, quoted as ranges·REVIEWED JUL 2026
Plan above: the 22×22 ft footprint laid out as a living room at 150 lux, with iso-lux contours at 32 / 21 / 11 lux.
Schedule · by useOne 22×22 footprint, twelve commissioning targets
| Room type | Target | Total lumens | Fixtures | Grid | Spacing |
|---|---|---|---|---|---|
| Kitchen | 300 lx | 24,284 lm | 30 | 5 × 6 | 4.4′ × 3.7′ |
| Living room | 150 lx | 14,052 lm | 20 | 4 × 5 | 5.5′ × 4.4′ |
| Bedroom | 100 lx | 9,368 lm | 12 | 3 × 4 | 7.3′ × 5.5′ |
| Bathroom | 200 lx | 18,735 lm | 25 | 5 × 5 | 4.4′ × 4.4′ |
| Home office | 300 lx | 24,859 lm | 30 | 5 × 6 | 4.4′ × 3.7′ |
| Dining room | 150 lx | 12,430 lm | 16 | 4 × 4 | 5.5′ × 5.5′ |
| Garage | 150 lx | 14,052 lm | 20 | 4 × 5 | 5.5′ × 4.4′ |
| Hallway | 100 lx | 9,368 lm | 12 | 3 × 4 | 7.3′ × 5.5′ |
| Laundry | 200 lx | 16,190 lm | 20 | 4 × 5 | 5.5′ × 4.4′ |
| Basement | 150 lx | 14,052 lm | 20 | 4 × 5 | 5.5′ × 4.4′ |
| Workshop | 400 lx | 32,379 lm | 42 | 6 × 7 | 3.7′ × 3.1′ |
| Nursery | 100 lx | 9,368 lm | 12 | 3 × 4 | 7.3′ × 5.5′ |
At 800 lumens per fixture and an 8 ft ceiling. Open a room type for other fitting outputs, other ceilings and its own contour sheet.
SOURCE·IES lumen-method recommendations·published recommendations, quoted as ranges·REVIEWED JUL 2026
QueriesWhat this footprint is usually asked
How many recessed lights for a 22x22 room?
It depends what the room is for. A 22×22 ft (484 sq ft) living room needs about 20 fixtures at 800 lm; the same footprint as a kitchen needs about 30, because a kitchen is lit to roughly double the level. Pick the room type for the real answer.
How many square feet is a 22x22 room?
484 square feet, or 45 square metres.
