First few minutes
Just happened? Do this first
- Act while latex is still wet, because removal gets very hard once it has dried for 6 to 8 hours.
- If oil-based paint can't be treated right away, wrap the piece in plastic or airtight wrap so it doesn't dry out.
- Blot any liquid paint with a cloth to keep it from spreading.
- Check the can to see whether the paint is latex or oil-based.
A deck can have two kinds of paint problem, depending on whether the latex is still soft or has hardened into the grain. Soft latex lifts with water and a little soap, while hardened paint takes more patience and scraping. Oil-based paint needs a solvent instead, and pressure washers can damage the wood in the wrong hands, so go gently.
Take old, peeling paint off a wood deck one board at a time, so you can rinse each one as you go. Paint between deck boards often needs a stiff brush rather than a scraper. If the flaking keeps coming back, call a pro before you commit to more work.
Before you start
What decks & wood fences can take
Safe to use2
- Water
- Oxygen bleach
Use with care5
- Soaking
- Chlorine bleach
- Solvents (alcohol, spot removers)
- Acids (vinegar, lemon)
- Scrubbing and abrasives
8 items
What you'll need
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- Stiff cardboard or a plastic bowl scraperLifts hardened paint off the wood.
- Sponge and clear waterLifts wet latex before it dries. (opens Amazon)
- Mild dish soapAdded to the water for wet latex. (opens Amazon)
- Stiff synthetic-bristle brushScrubs along the grain without wire. (opens Amazon)
- Garden hose with a low-pressure sprayThe rinse for wood decks.
- Dry clothsWipe the wood right away so water doesn't damage the finish.
- Rubber glovesNeeded if you use oxalic acid. (opens Amazon)
- Boiled linseed oilFor dried oil-based paint on wood.
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5 steps
Step by step
Step 1 of 5
Sponge out wet latex
If the paint is still wet, rub the spot with a sponge dampened in clear water with a little mild dish soap. Wipe the wood with a dry cloth right away, so the water doesn't damage the finish.
Tip. Work in small sections so each spot gets dried right away.
Step 2 of 5
Scrape off hardened paint
If the paint has hardened, lift it with stiff cardboard, a plastic bowl scraper or a fingernail. Work from the edges of the spot toward the center so the paint doesn't spread onto clean wood.
Tip. If the paint won't lift at all, it's set in, and the stubborn-paint options cover it.
Step 3 of 5
Scrub along the grain
Scrub the remaining paint with a stiff synthetic-bristle brush, moving along the grain of the boards. Keep the strokes steady and don't dig into the wood.
Tip. Rinse the brush often so loosened paint doesn't end up back on the board.
Step 4 of 5
Rinse with a low-pressure hose
Rinse the boards with a garden hose on low-pressure spray, which is the safe rinse for wood here. Keep going until the water runs clear and no flakes of paint are left in the grain.
Careful. Don't let cleaners or soap dry on the deck.
Step 5 of 5
Dry the wood and check it
Let the boards dry fully, then check the spot in good light. If a faint shadow of paint remains, lightly sand once along the grain and check again.
Tip. If paint is still there after sanding, go to the stubborn-paint options.
If you'd rather buy than mix
Best products for paint on decks & wood fences
Look for plain boiled linseed oil and oxalic acid for the stubborn-paint options, and read the label before use. Fresh oil-based spots call for a liquid solvent-base wax, so check that the label says it's made for that.
Amazon Basics Microfiber Cleaning Cloths
How we picked these: each product is made for this type of stain, its maker doesn't warn against using it on decks & wood fences, and its directions fit the steps above.
Finished the steps? How does it look?
Nice work. Let it dry completely and check it again in good light. Here is what done looks like:
How to tell it's really gone →A faint mark usually needs one more round, not a stronger product.
See what to do for what you're seeing →If the stain was already dried or set, the method changes.
Old, dried or set-in stains →When to call a professional →How to tell it's working
The wood should look like bare boards again, with the grain visible and no paint left in the gaps. Check the spot once it's fully dry, since wet wood can look different. If it still looks painted when dry, the paint is set in, and the stubborn-paint options cover it.
What changes for yours
Adjust for your decks & wood fences
Wood decks
Fresh oil-based paint on wood skips the sponge. Rub the spot with a cloth dampened with the thinner its can recommends, test a hidden board first, then carry on with the scrub and rinse.
Pressure-treated boards follow the same order, with no bleach of any kind on them. Old CCA-treated wood needs extra care around children and pets, as covered in the mistakes section.
Composite decking
Composite boards need a gentler touch than wood, so don't copy the wood treatment over as written. Start with clear water and a soft sponge, wiping the board dry right away.
Check the maker's care instructions before using a brush or anything stronger, and test on a hidden board first. Skip hard scraping, which can mark the surface.
Deck boards and railings
Gaps between boards, plus railings, spindles and balusters, are where paint hides. Work the stiff synthetic brush into each gap, moving along the grain, and wipe the narrow pieces with the sponge instead of scrubbing them hard.
Rinse each section right after you scrub it, so loosened paint doesn't dry back into the gaps. Keep the hose on low pressure around the railings too.
Old, dried or set-in stains
Old oil-based paint that has dried on the wood is the hardest case. Cover the spot with boiled linseed oil, let it stand until the paint softens, then remove it with a cloth dampened with boiled linseed oil.
If paint still remains after scrubbing, mix 1 tablespoon oxalic acid in 1 pint of water. Rub the stained area with a cloth dampened in the solution, wipe it dry, and re-seal the wood as soon as possible.
If any paint is left, make a paste from rottenstone mixed with mineral oil, linseed oil or lemon oil. Rub it lightly in the direction of the grain, wipe with plain linseed oil, then rub briskly with the grain using a soft clean cloth. Old paint in deep grain may still leave a faint shadow, and that's a realistic result.
Vinegar, baking soda, peroxide and more
Do home remedies work on paint on decks & wood fences?
Most kitchen remedies don't suit a deck, so stick with the sponge, scrape and low-pressure rinse. Acrylic and spray paint have no separate method here, so start with the sponge and scrape and stop if they don't respond. Pressure washing and sanding have their own limits, covered in the mistakes section and the set-in options.
Works1Skip5
What makes it worse
Mistakes to avoid
Don't use chlorine bleach on a pressure-treated deck.
Bleach breaks down the lignin in the wood, corrodes metal fasteners, harms plants, and doesn't kill mildew spores. Never mix it with ammonia or a detergent that contains ammonia, because that forms a toxic gas.
Don't blast the paint off with a pressure washer.
Narrow-stream and rotating 'tornado' tips aren't safe on decks, and soft woods like western redcedar can lose their surface to power washing. A deck can be damaged in the wrong hands, so stick to a low-pressure garden hose.
Don't scrub with steel wool or wire brushes.
Leftover iron from steel wool or wire reacts with the wood and stains the board. Use a stiff synthetic-bristle brush along the grain instead.
Don't handle oxalic acid without rubber gloves.
Oxalic acid is poisonous, so keep it off your skin and wear rubber gloves for the whole job, from mixing to wiping.
Don't wet-clean an old CCA deck with kids or pets nearby.
Wetting old CCA-treated wood raises the arsenic at the surface, and bleach releases chromate. Keep children and pets off wet CCA wood.
Troubleshooting
If the stain is still there
Pick what you're seeing:
Latex paint is stuck deep in the wood grain.
Scrape what you can with a plastic scraper along the grain, then use the oxalic acid solution on a dampened cloth. Wipe dry and re-seal.
Paint is wedged between deck boards.
Slide stiff cardboard or a thin plastic scraper into the gap and lift the paint out in pieces. Avoid metal tools that gouge board edges.
Oil-based paint won't soften.
Leave the boiled linseed oil on longer, then try again with a linseed-oil cloth. Follow with the rottenstone paste if a film remains.
The treated spot looks lighter than the rest of the deck.
Re-seal the area as soon as possible. If the color still doesn't blend, a deck brightener before refinishing evens out tannin bleed and nail-rust streaks.
When to call a professional
Call a pro if the paint won't lift with the steps above. Pressure washing can damage a deck in the wrong hands, so leave that job to a professional. Old CCA lumber should be replaced rather than cut or burned, because its sawdust and smoke contain arsenic.
Questions
Deck paint vs. deck stain: which is better?
Pick based on the look you want, since paint and stain finish wood very differently. If the boards are already painted and you want a stain, remove the loose and hardened paint with the steps above first, then check the stain's label for your wood.
Can I clean a deck without removing the paint?
Yes, for light dirt. Start with a low-pressure garden hose rinse and a stiff synthetic brush along the grain, which keeps the boards clean without harsh cleaners. Stop there if the paint is sound, and treat only the loose spots.
Can I use a pressure washer to strip deck paint?
Not safely, since a high-pressure wash can damage the boards. Stick to a garden hose on low-pressure spray, which is the rinse to use here.
Can I sand paint off a deck?
Only a light sanding once the wood is fully dry, and only along the grain. Stop as soon as the paint is gone. If it needs more than a light pass, a pro can judge whether heavy sanding is safe for your boards.
Will old, dried paint come off a deck?
Sometimes. Hardened paint can often be lifted with stiff cardboard, a plastic scraper or a fingernail, and dried oil-based paint has its own treatment in the set-in options.
Can I use these steps on composite decking?
Not as written. Start with clear water and a soft sponge, and check the maker's care instructions before using a brush or anything stronger.
Paint on other materials
Other stains on decks & wood fences
Start from the bigger picture
How we know this
Every method, amount and warning here comes from university extension services, industry bodies and product makers. We read them, check every step for unsafe combinations and changed amounts, and write it up so you can follow it.