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12×14 room: paint by wall height
| Wall height | Paintable sq ft | Gallons (2 coats) | Buy |
|---|---|---|---|
| 8 ft | 366 | 2.09 | 3 |
| 9 ft | 418 | 2.39 | 3 |
| 10 ft | 470 | 2.69 | 3 |
1 door and 2 windows deducted; 350 sq ft per gallon.
Worked example
Perimeter: 2 × (12 + 14) = 52 ft. With 8 ft walls: 416 sq ft, minus 20 (door) and 30 (two windows) = 366 sq ft. Two coats: 732 ÷ 350 = 2.09 gallons. The ceiling adds 168 sq ft per coat (about 0.96 gallons for two coats).
Frequently asked questions
How many gallons to paint a 12×14 room?
About 2.09 gallons for two coats on 8 ft walls (buy 3).