How this deck stain calculator works
Surface area is multiplied by coats and waste allowance, then divided by coverage per gallon.
How to use it
- Surface area. Enter the value in sq ft.
- Coats. Enter the value that applies to your situation.
- Coverage per gallon. Enter the value in sq ft.
- Waste allowance. Enter the value in %.
- Request the result. Add your email, then select “Email & show my result.”
What to do with the number
Wood porosity, condition and application method can change stain consumption. Use the product label coverage for your wood condition and count railings or stairs separately when needed.
Planning estimate
Use this result as a starting point, not a guarantee. Product specifications, site conditions, manufacturer guidance, local codes, taxes, labor, tolerances, and rounding can change the real requirement or cost.