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8×8 room: paint by wall height
| Wall height | Paintable sq ft | Gallons (2 coats) | Buy |
|---|---|---|---|
| 8 ft | 206 | 1.18 | 2 |
| 9 ft | 238 | 1.36 | 2 |
| 10 ft | 270 | 1.54 | 2 |
1 door and 2 windows deducted; 350 sq ft per gallon.
Worked example
Perimeter: 2 × (8 + 8) = 32 ft. With 8 ft walls: 256 sq ft, minus 20 (door) and 30 (two windows) = 206 sq ft. Two coats: 412 ÷ 350 = 1.18 gallons. The ceiling adds 64 sq ft per coat (about 0.37 gallons for two coats).
Frequently asked questions
How many gallons to paint a 8×8 room?
About 1.18 gallons for two coats on 8 ft walls (buy 2).