Home office Lighting: Lumens & Fixture Count by Room Size

Target · why this figureWhat a home office is actually lit to

The brightest room on this list. The ceiling layer is sized to 300 lux and a desk lamp is assumed to take the working plane the rest of the way — lighting a whole office to 500 lux from the ceiling alone is glary and wasteful.

SOURCE·IES lumen-method recommendations·published recommendations, quoted as ranges·REVIEWED JUL 2026

Schedule · 60 footprintsEvery footprint, worked at 300 lux

Home office fixture counts by footprint COMPUTED · JUL 2026
Room size	Area	Total lumens	Fixtures	Grid
8 × 8 ft	64 sq ft	5,036 lm	6	2 × 3
8 × 10 ft	80 sq ft	5,921 lm	6	3 × 2
8 × 12 ft	96 sq ft	6,826 lm	9	3 × 3
9 × 9 ft	81 sq ft	5,957 lm	9	3 × 3
9 × 12 ft	108 sq ft	7,399 lm	9	3 × 3
10 × 10 ft	100 sq ft	6,957 lm	9	3 × 3
10 × 11 ft	110 sq ft	7,460 lm	9	3 × 3
10 × 12 ft	120 sq ft	7,957 lm	9	3 × 3
10 × 13 ft	130 sq ft	8,480 lm	12	4 × 3
10 × 14 ft	140 sq ft	9,022 lm	12	4 × 3
10 × 15 ft	150 sq ft	9,560 lm	12	4 × 3
10 × 16 ft	160 sq ft	10,095 lm	12	4 × 3
10 × 20 ft	200 sq ft	12,209 lm	18	6 × 3
11 × 11 ft	121 sq ft	7,986 lm	9	3 × 3
11 × 12 ft	132 sq ft	8,560 lm	12	4 × 3
11 × 13 ft	143 sq ft	9,139 lm	12	4 × 3
11 × 14 ft	154 sq ft	9,712 lm	12	4 × 3
12 × 12 ft	144 sq ft	9,178 lm	12	3 × 4
12 × 13 ft	156 sq ft	9,787 lm	12	4 × 3
12 × 14 ft	168 sq ft	10,390 lm	12	4 × 3
12 × 15 ft	180 sq ft	10,988 lm	16	4 × 4
12 × 16 ft	192 sq ft	11,581 lm	15	5 × 3
12 × 18 ft	216 sq ft	12,799 lm	15	5 × 3
12 × 20 ft	240 sq ft	14,014 lm	18	6 × 3
12 × 24 ft	288 sq ft	16,420 lm	21	7 × 3
13 × 13 ft	169 sq ft	10,427 lm	16	4 × 4
13 × 14 ft	182 sq ft	11,058 lm	16	4 × 4
13 × 15 ft	195 sq ft	11,690 lm	16	4 × 4
13 × 16 ft	208 sq ft	12,341 lm	16	4 × 4
14 × 14 ft	196 sq ft	11,729 lm	16	4 × 4
14 × 15 ft	210 sq ft	12,418 lm	16	4 × 4
14 × 16 ft	224 sq ft	13,101 lm	16	4 × 4
14 × 18 ft	252 sq ft	14,452 lm	20	5 × 4
14 × 20 ft	280 sq ft	15,788 lm	20	5 × 4
15 × 15 ft	225 sq ft	13,138 lm	16	4 × 4
15 × 16 ft	240 sq ft	13,852 lm	16	4 × 4
15 × 18 ft	270 sq ft	15,262 lm	20	5 × 4
15 × 20 ft	300 sq ft	16,704 lm	20	5 × 4
16 × 16 ft	256 sq ft	14,595 lm	20	4 × 5
16 × 18 ft	288 sq ft	16,092 lm	20	5 × 4
16 × 20 ft	320 sq ft	17,624 lm	24	6 × 4
16 × 22 ft	352 sq ft	19,141 lm	24	6 × 4
16 × 24 ft	384 sq ft	20,646 lm	28	7 × 4
17 × 17 ft	289 sq ft	16,132 lm	20	4 × 5
18 × 18 ft	324 sq ft	17,777 lm	25	5 × 5
18 × 20 ft	360 sq ft	19,438 lm	25	5 × 5
18 × 22 ft	396 sq ft	21,080 lm	25	5 × 5
18 × 24 ft	432 sq ft	22,706 lm	30	6 × 5
20 × 20 ft	400 sq ft	21,223 lm	30	5 × 6
20 × 22 ft	440 sq ft	22,984 lm	30	6 × 5
20 × 24 ft	480 sq ft	24,726 lm	30	6 × 5
20 × 30 ft	600 sq ft	30,150 lm	40	8 × 5
22 × 22 ft	484 sq ft	24,859 lm	30	5 × 6
22 × 24 ft	528 sq ft	26,824 lm	36	6 × 6
24 × 24 ft	576 sq ft	28,944 lm	36	6 × 6
24 × 30 ft	720 sq ft	35,202 lm	45	9 × 5
25 × 25 ft	625 sq ft	31,083 lm	42	6 × 7
26 × 26 ft	676 sq ft	33,276 lm	42	6 × 7
28 × 28 ft	784 sq ft	37,849 lm	49	7 × 7
30 × 30 ft	900 sq ft	42,807 lm	56	7 × 8

At 800 lumens per fixture, 8 ft ceiling. A 12 × 14 ft home office is the reference case: 12 fittings, 4 × 3, 3.5′ centres.

SOURCE·Computed from the lumen method·no dataset, every figure reproducible with a calculator·REVIEWED JUL 2026

Kitchen 300–500 lxLiving room 150–300 lxBedroom 100–200 lxBathroom 200–300 lxDining room 150–300 lxGarage 150–300 lxHallway 100–200 lxLaundry 200–300 lxBasement 150–300 lxWorkshop 500–750 lxNursery 100–200 lx

Home office lighting

Target · why this figureWhat a home office is actually lit to

Schedule · 60 footprintsEvery footprint, worked at 300 lux

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Home office lighting

Target · why this figureWhat a home office is actually lit to

Schedule · 60 footprintsEvery footprint, worked at 300 lux

AdjacentThe other eleven targets in the same house

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