How to Clean Wood Pallets

Co-authored by Susan Stocker

Last Updated: October 23, 2022 References

Before cleaning your pallet, put on thick gloves and inspect the wood visually for stains, protruding nails and code markings. Once you confirm that the pallet is safe to use, hose it down outside with a garden hose or power washer. Scrub the wood twice with a brush and soapy water, rinsing it off in between scrubbings. After a final rinse, leave your pallet in the sunshine to dry.

Part 1

Part 1 of 2:

Evaluating Your Pallet for Safety

1
Look for sharp protrusions. Wear thick, non-porous gloves to inspect the pallet. Check the whole pallet to see if there are any nails or tacks sticking out. If you find a protruding nail, remove it with the claw of a hammer. If there are many tacks, you can remove them with a tack puller.
- If there are tacks covering the whole piece of wood, and they aren’t sticking out, it’s not necessary to remove them.
- Tacks pose less of a tetanus risk than nails, but they are both sharp and can cause accidental injury.
2
Check the pallet for discoloration. Visually inspect the entire pallet. Avoid colored pallets, which are used to ship chemicals and may be toxic. If you find any area with staining from an unknown source – for instance, if you don’t know the history of the pallet – it’s best to dispose of it.^{[1]
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- Depending on what the pallet was used for in the past, the stains could be hazardous. For example, pallets that transported food or chemicals may contain pathogens or other dangerous substances.
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3
Look for a marking that identifies the pallet. Inspect the pallet for any stamps in numbers, symbols or words that are not part of a company logo. Such markings may be painted, branded or etched onto the wood. If there aren’t any, the pallet is most likely safe. If you find a treatment code – a two- to four-letter code, usually in the lower center of a marking – identify the code.^{[2]
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- Pallets marked with ”DB” (Debarked), “HT” (Heat Treated), “KD” (Kiln Dried) and “EPAL” (European Pallet Association Logo) should be safe to use. Avoid pallets marked “EUR” unless also marked with “EPAL.”^{[3]
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- Pallets marked with “MB” (Methyl Bromide) contain toxic fungicide and should be disposed of according to local regulations, which can be found on the website of your locality or trash disposal service.
- The pallet may contain an abbreviation for the country of origin, a registration number, and other symbols.
- If the pallet is from an international source and is not marked “IPPC Logo,” it may not be safe to use.

Part 2

Part 2 of 2:

Washing and Sanding Your Pallet

1
Hose the pallet outdoors. Don’t take the unclean pallet inside your home. Use a garden house or power washer to give the whole pallet an initial rinse.^{[4]
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Expert Source

Susan Stocker
Green Cleaning Expert
Expert Interview. 8 November 2020.} This should wash away any debris. Allow the pallet to dry.
- Reclaimed wood may contain insects, for example, that you wouldn’t want indoors.
2
Disassemble the pallet, if desired. Try using a hammer, pry bar and cat’s paw to take apart the pallet without breaking it. If a pry bar doesn’t finish the job, a nail punch or drill can drive the nails out. Alternatively, you can cut through exposed nails with an oscillating tool, or cut through the planks themselves.^{[5]
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- Disassemble the pallet if you want to use the planks instead of the whole pallet in one piece.
3
Sand the wood. Place the pallet or planks between sawhorses. Rub the wood’s surface with the grain, starting with a coarse sandpaper and moving up to a fine grade. Sand the entire pallet so that it is smooth to the touch and won’t create splinter.
- Make sure to sand your pallet outdoors, wearing safety goggles and a respirator to avoid dust issues.^{[6]
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- If you opt not to sand the pallet, only use it somewhere that family and guests won’t touch it, since rough wood can cause splinter.
4
Scrub the wood with a soap solution. In a bucket, combine five parts water to one part dish detergent. Alternatively, you can use a solution of one part detergent, ten parts bleach and twenty parts water.^{[7]
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- Wear old clothes and rubber gloves. If you’re using bleach, you should also wear safety goggles and a face mask.
- You may want to use bleach if you have a reason to suspect mold or mildew.
- Don’t combine bleach with any products that contain ammonia.
5
Rinse the wood and scrub it again. Use a garden hose or power washer to rinse all the solution from the wood. Use the solution and your scrub brush to clean the wood a second time. Rinse the pallet a final time, then leave it in the sun until it’s dry.

Warnings

Consult your physician if you incur an injury from a metal object such as a nail or tack.

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Handling old pallets can be potentially dangerous and should be done at your own risk. Wear gloves to protect your skin when inspecting a pallet. Dispose of the pallet if you can’t confirm that it’s safe to use.

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Bleach is toxic and requires the use of proper ventilation, a face mask, adequate gloves and safety goggles. Never allow bleach to come in contact with ammonia, your eyes, or your skin.

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If you use a power washer, make sure to follow all the instructions and safety precautions that came with your machine.

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It’s best not to use pallet wood for projects that will be used near food, children or pets.^{[9]
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Confirming the safety of your pallet is especially important for outdoor furniture use or any indoor use.^{[10]
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Pallets marked “MB” were fumigated with methyl bromide, which is highly toxic.^{[11]
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