Deck Stain Calculator
Gallons of stain for your deck.
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How to use this calculator
- Enter the deck's square footage.
- Choose one or two coats.
- See gallons of stain to buy.
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Frequently asked questions
- How much deck stain do I need?
- Deck stain covers about 200 square feet per gallon on wood, less on rough or weathered boards. A 300 sq ft deck with two coats needs about 3 gallons.
- How many coats of deck stain?
- Two thin coats give better protection and even colour than one heavy coat. Don't over-apply — wood can only absorb so much.