Deck Stain Calculator
Calculate gallons of deck stain or sealer needed based on deck area and product type
Deck Dimensions
Product & Conditions
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Enter your deck dimensions to calculate stain needed
Tips & Notes
- •Clean and strip old finish before restaining — new stain won't bond over old peeling finish.
- •Rough or weathered wood absorbs more stain than smooth new wood — account for this.
- •Apply stain in shade or on a cool day — sun dries stain too fast before it can penetrate.
- •Semi-transparent stain shows wood grain and typically lasts 2–4 years. Solid stain lasts 4–6 years.
- •Back-roll or brush after spraying to ensure penetration. Don't let puddles sit.
Recommended Products
Popular items for this project — links may earn a commission.
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Materials & Supplies
Deck Plus 2-1/2" Epoxy Coated Deck Screws — 5 lb Box
Star drive, tan finish, rust resistant exterior deck screws
$24Amazon
Grip-Rite DeckForce Composite Deck Screws 2-1/2" — 5 lb
Nano coated, T-17 saw tip, brown, designed for composite decking
$38Amazon
Simpson Strong-Tie LUS24Z ZMAX Joist Hanger for 2x4 (100-Pack)
ZMAX galvanized face-mount hanger, code-compliant for deck framing
$60Amazon
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Tools You'll Need
Fiskars 60" Steel Posthole Digger
Pre-sharpened welded steel blades, digs up to 4 ft deep for deck footings
$60Amazon
DEWALT 20V MAX Compact Drill/Driver Kit (DCD771C2)
1/2" chuck, 2 batteries and charger included, lightweight at 3.6 lbs
$99Amazon
IRWIN Tools 7" Rafter Square Speed Square
Aluminum alloy, markings for rafter layout, stair layout, and angles
$12Amazon
Stanley 25 ft PowerLock Tape Measure
1-3/16" wide blade, mylar coating, rubber grip, belt clip included
$15Amazon