How many lumens for a 20 × 24 ft laundry room?
Total light needed
14,400lumens
480 ft² × 30 foot-candles
| Room area | 480ft² |
|---|---|
| Target light levelIES guidance for a laundry room | 30foot-candles |
| Total lumens | 14,400lm |
| Colour temperaturecolour accuracy matters for stains | 3500–4000K |
| Bulbs (800 lm each) | 18bulbs |
| Recessed cans (4 ft spacing)480 lm each | 30fixtures |
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 14,400 lm fixture and 30 smaller ones add up the same but look completely different.
Where 14,400 lumens comes from
Lighting is specified in foot-candles — lumens landing on each square foot of the surface you care about. A laundry room is worked to 30 foot-candles. Across 480 ft² that is 14,400 lumens in total.
Split it up
One fixture putting out 14,400 lumens and 30 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.
Color temperature
3500–4000K suits this room. Warmer light reads as relaxed and is what you want where people wind down; cooler light keeps edges and colors crisp, which matters where there is work to do.
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