Paint for a 8×9 room
1.3 gallons (buy 1 gal + 2 qt)
for two coats on 221 sq ft of wall: 8 ft ceilings, one door, two windows, 350 sq ft per gallon.
Paint for a 8×9 room by ceiling height
| Ceiling height | Wall area | 1 coat | 2 coats |
|---|---|---|---|
| 8 ft | 221 sq ft | 0.6 gal | 1.3 gal |
| 9 ft | 255 sq ft | 0.7 gal | 1.5 gal |
| 10 ft | 289 sq ft | 0.8 gal | 1.7 gal |
| 12 ft | 357 sq ft | 1 gal | 2 gal |
Wall area subtracts one door (21 sq ft) and two windows (15 sq ft each). Ceiling: 72 sq ft, 0.21 gal per coat.
How it’s worked out
- Perimeter: 2 × (9 + 8) = 34 ft.
- Wall area: 34 × 8 ft = 272 sq ft, minus 21 for the door and 30 for the windows = 221 sq ft.
- Two coats: 221 × 2 ÷ 350 = 1.26 gallons.
Change the numbers
Other room sizes
- 8×8 room
- 8×10 room
- 9×9 room
- 8×11 room
- 9×10 room
- 8×12 room
- 9×11 room
- 8×13 room
- 9×12 room
- 8×14 room
- 9×13 room
- 8×15 room
Questions
- How much paint do I need for a 8×9 room?
- About 1.3 gallons for two coats on the walls of a 8×9 room with 8 ft ceilings, one door and two windows: buy 1 gal + 2 qt. The ceiling takes another 0.2 gallons per coat.
- How many square feet of wall is a 8×9 room?
- 272 sq ft of wall with 8 ft ceilings, or about 221 sq ft after one door and two windows.
- How much does it cost to paint a 8×9 room?
- Paint for the walls costs about $80 at $40 a gallon. Professional painters typically charge $2 to $6 per square foot of floor area, about $144 to $432 here.