Lighting a 18 × 22 ft garage
Total light needed
19,800lumens
396 ft² × 50 foot-candles
| Room area | 396ft² |
|---|---|
| Target light levelIES guidance for a garage | 50foot-candles |
| Total lumens | 19,800lm |
| Colour temperaturecool white for detail work | 4000–5000K |
| Bulbs (800 lm each) | 25bulbs |
| Recessed cans (4 ft spacing)792 lm each | 25fixtures |
- Room
- garage
- Width
- 18 ft
- Length
- 22 ft
Where 19,800 lumens comes from
Lighting is specified in foot-candles — lumens landing on each square foot of the surface you care about. A garage is worked to 50 foot-candles. Across 396 ft² that is 19,800 lumens in total.
Split it up
One fixture putting out 19,800 lumens and 25 fixtures adding up to the same number light a room very differently. A single source throws hard shadows and glare; several spread the light and make the room feel larger. Aim for layers — ambient, task, and something low for the evening.
Colour temperature
4000–5000K suits this room. Warmer light reads as relaxed and is what you want where people wind down; cooler light keeps edges and colours crisp, which matters where there is work to do.
Notes
- Foot-candles are lumens per square foot at the work surface. Ceilings above 9 ft, dark walls or dark flooring all eat light — add roughly 10% per extra foot of ceiling height.
- Spread the total across several fixtures rather than one bright source. One 19,800 lm fixture and 25 smaller ones add up the same but look completely different.
Nearby sizes
- Lighting a 18 × 22 ft home office
- Lighting a 18 × 22 ft hallway
- Lighting a 18 × 22 ft dining room
- Lighting a 18 × 22 ft laundry room
- Lighting a 16 × 22 ft garage
- Lighting a 20 × 22 ft garage
- Lighting a 14 × 22 ft garage
- Lighting a 22 × 22 ft garage
- Lighting a 18 × 20 ft garage
- Lighting a 18 × 24 ft garage
- Lighting a 18 × 18 ft garage
- Lighting a 18 × 26 ft garage