The formula for calculating the amount of stain needed is straightforward: divide the total square footage of the deck by the coverage rate per gallon. This will give you the number of gallons required to cover your entire deck.
square footage = total area of the deck in square feet
coverage rate = coverage per gallon in square feet
How do I calculate the surface area of my deck?
What is coverage rate, and how do I find it?
Do I need to account for any overage when calculating stain?
How often should I re-stain my deck?
Can I use this calculator for decks with multiple levels?
What if my deck has gaps or uneven surfaces?
Are there any special considerations for decks with a lot of wood grain variation?
Results are for informational purposes only and do not constitute professional advice.
