How to Stain a Deck
Complete guide to staining a wood deck: cleaning, stripping old stain, choosing between solid and semi-transparent stain, applying by brush or roller, and re-coating timelines.
Decorate · Deck & Patio
Deck staining is structural maintenance as much as it is cosmetics. Unprotected wood checks, grays, and starts to absorb water that leads to rot within 5–7 years. A stained deck lasts decades. The work takes one weekend; the preparation takes most of it.
Solid vs. Semi-Transparent: Choose Before You Buy
Semi-transparent penetrating stain: Penetrates the wood, does not form a film, does not peel. Shows grain. Lasts 2–4 years. Can be recoated without stripping. Best for new or recently stained decks in good condition.
Solid stain: Forms a film on the wood surface, covers grain and weathering damage. Lasts 4–6 years. Requires full stripping when it fails. Best for older decks with weathering damage or existing solid coat history. Once you go solid, you cannot go back to semi-transparent without stripping and sanding.
What You'll Need
Tools: Deck brush, pump sprayer, garden hose (pressure washer optional at 1,200–1,500 PSI), pole sander with 80-grit, 4-inch chip brush, 9-inch roller and 3/8-inch nap cover, paint tray, rubber gloves.
Materials: Deck cleaner (oxygenated bleach formula), deck brightener (oxalic acid-based), deck stain (semi-transparent or solid), deck stain stripper (if existing coat is peeling).
The Steps
01 · Inspect and repair
Probe suspicious soft areas with a screwdriver — rot compresses, sound wood does not. Replace rotted boards. Countersink popped nails, replace loose screws, sand splinter-prone areas. Fix structure before cosmetics.
02 · Strip old stain (if peeling)
Peeling solid stain must come off before recoating. Apply stain stripper, let dwell 15–30 minutes, scrub, rinse thoroughly. Semi-transparent stain that has weathered evenly does not need stripping.
03 · Clean with deck wash
Apply oxygenated bleach deck cleaner, scrub with a stiff deck brush, allow 10–15 minutes dwell, rinse thoroughly. This removes mildew, gray oxidation, and tannin staining that blocks stain absorption.
04 · Apply deck brightener
Apply oxalic acid brightener, scrub lightly, let dwell 10 minutes, rinse. This restores natural wood color and pH-balances the surface for better stain adhesion. The difference on gray decking is dramatic.
05 · Let dry completely — 24–48 hours
Staining wet wood is the leading cause of early deck stain failure. Wait at least 48 hours after rain. Use a moisture meter if uncertain — wood moisture content should be below 15%.
06 · Sand raised grain lightly
Pressure washing raises wood grain. One or two passes with a pole sander and 80-grit restores a smooth surface that allows even stain penetration.
07 · Apply stain with brush and roller
Apply in shade or morning/late-afternoon — not in midday sun. Roll 3–4 boards at a time with the grain; back-brush immediately with a 4-inch brush to work stain into board gaps and end grain. Wipe excess within 30 minutes — do not leave puddles.
08 · Second coat (if required)
Most solid stains need two coats. Many semi-transparent stains need a second coat for more porous wood. Apply within the recoat window on the label.
09 · Allow to cure
Light foot traffic after 24 hours. Furniture return after 48 hours. Full use after 72 hours. Do not cover with tarps during curing.