Deck stain calculator
PROGallons of stain for decking and railings.
Inputs
Result
Gallons
3.0
1 gal cans
3
5 gal buckets
1
The formula
gal = (area × coats) ÷ coverage per gallon.
Worked example
300 sq ft × 2 coats ÷ 200 sq ft/gal = 3 gallons.
Frequently asked
›One or two coats?
Two thin coats last longer than one thick coat.