Deck Stain Calculator
Updated Formulas shown
A 16 × 12 ft deck with 40 ft of railing takes about 4.50 gallons for two coats at 200 ft² per gallon.
Stain needed
4.5 gal
- Surface area
- 432 ft²
- 5-gal buckets
- 0
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Frequently asked questions
How often should I stain a deck?
Every 2–3 years for semi-transparent stain, 4–5 years for solid stain, depending on sun and traffic.
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Estimates only. Check quantities with your supplier or contractor before ordering.