🪣 Deck Stain Cost Calculator

Estimate the cost to stain a deck — stain gallons, deck cleaner, brightener, applicator, and prep supplies.

Project Details

Deck Area (sq ft)

Wood Condition (1=new wood, 2=previously stained, 3=weathered)

1 = bare new wood, 2 = previously stained, 3 = grey/weathered wood

Coats (1-2)

Enter your details and hit Calculate to see results.

✓ Allow new pressure-treated wood to dry 6–12 months before staining — the chemicals need to cure
✓ One gallon covers ~200 sq ft per coat; weathered wood is thirstier and may take more
✓ Deck brightener lowers wood pH after cleaning and opens the grain for better stain penetration
✓ Stain in shade or on a cool overcast day — direct sun causes lap marks and uneven drying