Deck Stain Calculator
Calculate how much deck stain or sealer you need (litres or gallons) based on deck area, stain type, and coats.
Results
How to Calculate Deck Stain
Measure deck area. Add 20% for railings if applicable. Divide by coverage rate and multiply by number of coats. Round up to nearest gallon.
Frequently Asked Questions
How much deck stain do I need?
One gallon covers 150-300 sq ft depending on type. Transparent: 150-200. Semi-transparent: 200-250. Solid: 250-300. New wood absorbs 20-30% more.