Lighting a 16 × 20 ft living room
Total light needed
4,800lumens
320 ft² × 15 foot-candles
| Room area | 320ft² |
|---|---|
| Target light levelIES guidance for a living room | 15foot-candles |
| Total lumens | 4,800lm |
| Colour temperaturewarm, relaxed | 2700K |
| Bulbs (800 lm each) | 6bulbs |
| Recessed cans (4 ft spacing)240 lm each | 20fixtures |
- Room
- living room
- Width
- 16 ft
- Length
- 20 ft
Where 4,800 lumens comes from
Lighting is specified in foot-candles — lumens landing on each square foot of the surface you care about. A living room is worked to 15 foot-candles. Across 320 ft² that is 4,800 lumens in total.
Split it up
One fixture putting out 4,800 lumens and 20 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
2700K 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 4,800 lm fixture and 20 smaller ones add up the same but look completely different.
Nearby sizes
- Lighting a 16 × 20 ft kitchen
- Lighting a 16 × 20 ft bedroom
- Lighting a 14 × 20 ft living room
- Lighting a 18 × 20 ft living room
- Lighting a 12 × 20 ft living room
- Lighting a 20 × 20 ft living room
- Lighting a 16 × 18 ft living room
- Lighting a 16 × 22 ft living room
- Lighting a 16 × 16 ft living room
- Lighting a 16 × 24 ft living room