How much paint for a 40 ft fence?
A 40 ft fence at 6 ft tall is about 240 sq ft per side. Two coats need roughly 1.4 gallons per side, or 2.7 gallons for both sides.
Both sides, 2 coats, 6 ft tall
2.7 gallons
Paint by fence height (chart)
| Height | One side | Both sides |
|---|---|---|
| 4 ft | 0.9 gal | 1.8 gal |
| 6 ft | 1.4 gal | 2.7 gal |
| 8 ft | 1.8 gal | 3.7 gal |
Rough or pressure-treated wood drinks more — add 20–30%.
Estimate it (enter length × height)
🖌️ Paint calculator
🛒 Fence paint & sprayer
A sprayer plus back-rolling gets paint into rough grain fast.
Shop fence paint →Frequently asked questions
- How much paint for a 40 ft fence?
- About 1.4 gallons for two coats on one side, or 2.7 gallons to cover both sides, at 6 ft tall.
- Should I paint both sides of a fence?
- If both sides are visible, yes — it also protects the wood better. Double the paint.