How Much Paint for a Fence?

By RugCalc Editorial Team · Last updated: 2026-10-14 · 4 min read

Quick answer: fence area ÷ 250–350 sq ft per gallon. A 100-foot privacy fence 6 feet tall is 600 sq ft per side — one side needs about 2–3 gallons per coat; both sides double it.

Get your exact gallons. Use the paint calculator — enter your fence area and it returns gallons per coat.
Fence with paint area markedPrivacy fence with height and length labels6 ft100 ft × 6 ft = 600 sq ft per side2–3 gallons per coat per side
In this guide
  • Fence area math
  • One side or both
  • Coverage by product
  • Picket fences and gaps
  • Gallons by fence size
  • Worked example: 100-foot fence
  • FAQ

Fence area math

Multiply length × height for the area per side. A 100-foot fence 6 feet tall is 600 sq ft per side. For privacy fences, this is the actual board area; for picket fences, the gaps mean less paintable surface — estimate about 70–80% of the full area.

One side or both

Paint both sides — it protects the wood equally and looks finished from the neighbor's side too. That roughly doubles the paint. The most common fence mistake is treating the fence like a wall and painting one side only, which leaves the far side to weather and rot faster.

Coverage by product

Exterior paint covers about 250–350 sq ft per gallon; solid stains 200–300; semi-transparent stains 300–400. Rough or weathered wood absorbs more — and raw wood should get a primer coat before paint. Always budget two coats for even color.

Fence size (6 ft tall)Area per sidePaint, one sideBoth sides
50 ft300 sq ft1–1.5 gal2–3 gal
100 ft600 sq ft2–3 gal4–6 gal
150 ft900 sq ft3–4 gal6–8 gal
200 ft1,200 sq ft4–5 gal8–10 gal

Picket fences and gaps

Picket fences have open gaps, so the paintable area is lower than length × height — use about 70–80% of the full area. Board-on-board fences overlap, so the effective area is close to the full square footage on both sides. Match the factor to your fence style.

Worked example: a 100-foot privacy fence, both sides

FAQ

How much paint do I need for a fence?

Measure the fence area (one or both sides) and divide by coverage — exterior paint covers about 250–350 sq ft per gallon. A 100-foot privacy fence 6 feet tall is 600 sq ft per side; one side needs about 2–3 gallons per coat.

How many square feet in a 100-foot fence?

About 600 sq ft per side for a 6-foot-tall fence (100 × 6). Both sides double it to 1,200 sq ft. Picket fences have gaps, so their paintable area is lower.

Should I paint both sides of a fence?

Yes — painting both sides protects the wood equally and looks finished from the neighbor's side too. That roughly doubles the paint.

How much fence paint or stain do I need for a 150-foot fence?

About 4–5 gallons per coat for one side of a 6-foot 150-foot fence (900 sq ft ÷ ~250 sq ft/gal). Both sides need 8–9 gallons.

What's the coverage of fence paint per gallon?

Exterior paint covers about 250–350 sq ft per gallon; solid stains 200–300; semi-transparent stains 300–400. Rough wood absorbs more — prime raw wood first.

Get your exact gallons. Use the paint calculator with your fence area.