How much stain for a 12x12 deck?
A 12x12 deck floor is 144 sq ft. Deck stain covers less than wall paint (~250 sq ft/gal), so two coats need about 1.2 gallons, plus railings and stairs.
Floor, 2 coats
1.2 gallons
144 sq ft of decking.
Estimate your deck
🖌️ Paint calculator
🛒 Deck stain & sealer
Weather-resistant stain protects against sun, rain and foot traffic.
Shop deck stain →Frequently asked questions
- How much stain for a 12x12 deck?
- About 1.2 gallons for two coats of the 144 sq ft floor, plus extra for railings and steps.
- How many coats of stain on a deck?
- Two thin coats last longer than one thick coat; high-traffic decks may need a third.