Deck Stain Calculator
Calculate how much deck stain or sealer you need based on deck dimensions, railings, and wood condition.
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How It Works
Deck stain coverage is much lower than wall paint — typically 150-250 sq ft/gallon depending on wood porosity. New wood absorbs more. Transparent stains cover less than solid stains. Railings have about 2.5 sq ft of surface per linear foot due to balusters. Always stain in dry weather with no rain forecast for 24-48 hours.