How Much Paint Does a Fence Need?
Fence paint coverage is significantly lower than interior wall paint because rough sawn wood fence boards are highly porous and absorb paint heavily. While interior walls achieve 400 square feet per gallon, rough wood fences typically achieve only 150 to 200 square feet per gallon. A new or bare wood fence may only achieve 100 to 150 square feet per gallon on the first coat.
A standard 6ft tall privacy fence 100 feet long has 600 square feet per side and 1,200 square feet total for both sides. At 150 square feet per gallon, that equals 8 gallons per coat for both sides. For two coats you need 16 gallons. Most homeowners paint only the visible side which halves the quantity to 4 gallons per coat.
Picket fences have significantly more surface area than privacy fences due to the gaps between pickets creating more edges and end grain to paint. Add 30 to 40% to your estimate when painting a picket or rail fence versus a solid privacy fence.
Fence Paint Calculator — Reference Table
| Fence Length | Height | 1 Side (1 coat) | Both Sides (2 coats) |
|---|---|---|---|
| 50 ft | 4 ft | 1.5 gal | 6 gal |
| 100 ft | 4 ft | 2.5 gal | 10 gal |
| 50 ft | 6 ft | 2.0 gal | 8 gal |
| 100 ft | 6 ft | 4.0 gal | 16 gal |
| 150 ft | 6 ft | 6.0 gal | 24 gal |
| 200 ft | 6 ft | 8.0 gal | 32 gal |
Paint vs Stain for Fences
The choice between paint and stain is one of the most important decisions when finishing a wood fence. Paint sits on top of the wood surface and provides an opaque finish in any colour. Stain penetrates into the wood fibres and enhances the natural wood grain while providing protection.
Stain is generally the better choice for wood fences. Because stain penetrates the wood rather than forming a surface film, it does not peel, crack, or blister when moisture gets into the wood. This makes maintenance much easier — reapplication simply requires cleaning the fence and applying a fresh coat without scraping or sanding old peeling paint.
Paint is the right choice when you want a specific opaque colour — white picket fences, coloured garden fences, or fences that need to match your house exterior. Use a quality exterior latex paint and expect to repaint every 3 to 5 years with proper prep.
Best Fence Paint and Stain Products
Cuprinol Garden Shades is the most popular fence paint in the UK — available in 30 colours, easy to apply, and lasts 6 years on fences and sheds. Ronseal Fence Life Plus is the most popular fence stain in the UK with excellent weatherproofing and a 5-year guarantee.
In the US, Behr Premium Exterior Wood Stain and Cabot Australian Timber Oil are the most popular fence stain options. For fence paint, Rust-Oleum Fence and Deck and Behr Premium Plus Exterior in flat finish are reliable choices for wood fences.
Tips for Painting a Fence
Clean the fence before painting. Pressure wash or scrub with a fence cleaner to remove dirt, mildew, and old flaking paint. Paint applied to a dirty fence will peel within one season.
Let wood dry completely. Never paint wet or damp wood. Let the fence dry for at least 48 hours after rain or pressure washing before applying paint or stain.
Use a brush or pad applicator. A wide brush or fence paint pad covers fence boards faster than a roller and gets paint into cracks and gaps between boards. A pump sprayer is fastest but requires more masking to protect surrounding plants and surfaces.
Paint on a dry overcast day. Avoid painting in direct hot sunlight — paint dries too fast and leaves brush marks. Overcast conditions give the best results for fence painting.
Buy 20% extra for rough wood. Rough sawn fence boards absorb significantly more paint than the label coverage rate suggests. Always overbuy for fence projects.
Related Paint Calculators
- Exterior Paint Calculator →
- Garage Paint Calculator →
- Primer Calculator →
- Paint Cost Calculator →
- Whole House Paint Calculator →
- Free Paint Calculator →
Frequently Asked Questions
How much paint do I need for a fence?
A 6ft tall fence 100 feet long needs 4 gallons per coat when painting one side. For both sides that is 8 gallons per coat. For two coats on both sides buy 16 gallons. Rough wood absorbs more — always buy 20% extra.
How many gallons of paint for a fence?
A 100 foot fence needs 6 to 8 gallons per coat when painting both sides. A 200 foot fence needs 12 to 16 gallons per coat. Always overbuy for rough sawn wood fences.
Should I paint or stain a wood fence?
Stain is generally better for wood fences. It penetrates the wood and does not peel like paint. Stain lasts 3 to 5 years before reapplication. Use paint when you want a specific opaque colour.
What is the best paint for a fence?
Cuprinol Garden Shades is the most popular in the UK. Behr Premium Exterior and Rust-Oleum Fence and Deck are reliable US options. Always use exterior paint or stain rated for outdoor wood.
How long does fence paint last?
Quality fence paint lasts 3 to 5 years on a well-prepared wood fence. Fence stain lasts 2 to 4 years. Proper prep — cleaning and drying — dramatically extends how long the finish lasts.
How many litres of paint for a fence?
A 100 foot fence needs 22 to 30 litres per coat when painting both sides. Buy multiple 5 litre tins for large fence projects. A small garden fence under 50 feet needs 5 to 10 litres per coat.