
Removing old rusty nails from decking can be a tricky and tedious task. The process may vary depending on the condition of the nails and whether you intend to reuse the decking planks. If the nails are protruding from the wood, you can use a nail puller, a flat bar, or a combination of a cat's paw and a cedar shim to extract them. For nails that are more stubborn or deeply embedded, you may need to use a mallet and crowbar to lift the decking planks or cut the planks with a power jigsaw to access the nails. In some cases, applying a product like WD40 can help loosen rusty screws. Once the nails are removed, you can treat the rusted areas with a rust remover or use electrolysis. To prevent future rusting, it is recommended to use galvanized nails or stainless steel screws.
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What You'll Learn
- Use a mallet and crowbar to lift the decking planks up
- Sand rusty nail heads and apply a rust-inhibiting primer
- Use a specialised nail puller to remove nails without damaging the wood
- Remove the nails, treat them in rust remover, and dry before reinserting
- Replace rusty nails with galvanised nails or stainless steel screws

Use a mallet and crowbar to lift the decking planks up
If you're looking to remove rusty nails from your decking, one option is to use a mallet and crowbar to lift the decking planks up. This method is particularly effective if you're planning to keep your decking.
First, locate the decking planks that are secured by rusty nails. Position the crowbar underneath the decking plank, wedging it underneath at one end of the plank. Gently tap the crowbar with the mallet to ensure it is secure and firmly in place.
Next, with the crowbar securely in position, use the mallet to gently tap the opposite end of the crowbar. This should create leverage, gradually lifting the decking plank up and away from the supporting joists. It may be necessary to adjust the position of the crowbar and repeat this process several times to fully lift the plank.
Once the decking plank has been lifted, you can easily access and remove the rusty nails. If the nails are particularly rusty, you may need to use a pair of pliers to grip and twist them out. Alternatively, you could use a nail puller, such as the Cooper Group 56 Nail Puller, which can make light work of removing nails, even those without heads.
If you're not planning to keep the decking, you could also use a saw to cut the decking planks into smaller, more manageable sections, making it easier to transport and dispose of the old decking.
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Sand rusty nail heads and apply a rust-inhibiting primer
If you're looking to remove rusty nails from your decking, you may want to consider replacing them with galvanized nails or stainless steel screws to prevent future rusting. However, if you're unable to remove the nails, you can opt to paint over the entire deck. If you choose to do this, you'll need to sand the rusty nail heads first. Sanding the nail heads will help create a smoother surface and remove any remaining protective coating that could accelerate rust formation. Once you've sanded the nail heads, you can apply a rust-inhibiting primer.
It is important to select a primer that is suitable for exterior use and will offer protection against rust. A rust-inhibiting primer will prevent the formation of rust stains and provide a base for your paint. You can use a rust primer spray can for a quick and easy application. Alternatively, you can use a brush to apply the primer with precision. It is recommended to apply multiple coats of the primer to ensure thorough coverage.
Before priming, you may also want to consider caulking the nail heads with acrylic caulk. Caulking will help fill any gaps or cracks around the nail heads, creating a smooth and even surface. This step is especially important if you are unable to sink the nails into the decking boards. By caulking and priming the exposed nails prior to painting, you can greatly reduce the risk of future nail head rusting problems.
After sanding the nail heads and applying the rust-inhibiting primer, you can proceed with repainting the surface of your decking. This will help to conceal the repaired nail heads and restore the appearance of your decking. It is recommended to use a high-quality exterior paint for the best results. Remember to take the necessary precautions, such as wearing protective gear and cleaning up carefully, to ensure your safety during the process.
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Use a specialised nail puller to remove nails without damaging the wood
If you're looking to remove rusty nails from decking without damaging the wood, a specialised nail puller is a great option. Nail pullers are designed to remove nails from various surfaces, including wood, and are a handy tool to have for any carpentry or construction project. They're especially useful when you need to remove nails without damaging the surrounding material.
Nail pullers, also known as nail claws, are designed to maximise leverage, making it easy to remove even stubborn nails. They typically consist of a durable metal bar with a curved, sharpened end that effectively grips and extracts nails. To use a nail puller, start by placing the curved end of the tool under the head of the nail. Then, apply force to the handle to lift the nail upwards.
It's important to note that proper positioning and application of force are key to effectively using a nail puller. The tool should be placed directly above the nail, and you may need to pump the handle up and down to compress the jaws before pulling the nail out. Nail pullers are easy to use but are specialised tools that not everyone has access to. You can typically find them at construction supply stores or online.
One popular option is the Cooper Group 56 Nail Puller, which features a sliding striker that allows you to bite into nails without heads and pull them out easily. While it may seem expensive at first, investing in a quality nail puller can make your decking restoration project much more manageable and help ensure that your wood remains undamaged.
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Remove the nails, treat them in rust remover, and dry before reinserting
If you want to remove rusty nails from your deck, there are a few methods you can try. Firstly, if the nails are raised and proud of the wood surface, you can use a nail puller, such as the Cooper Group 56 Nail Puller, to bite into the nails and pull them out. Alternatively, you can use a flat bar or cat's paw with a cedar shim to slide under the nail head and lift them out.
If you plan to reuse the nails, you can treat them with a rust remover or use electrolysis. Make sure to dry the nails completely before reinserting them. You can also use a rust-inhibiting primer or a 'rust converter' to help get rid of the rust before reinserting the nails.
If you are removing screws that have rusted and weakened, you can try using WD40 to loosen them. If the screw heads have already broken off, you may need to use pliers or a self-grip wrench to remove the remaining shafts. In some cases, it may be necessary to cut the surrounding wood to remove the screws and nails, especially if you cannot access the bottom of the deck.
To prevent future rusting, consider using galvanized nails or stainless steel screws when replacing nails or screws in your deck.
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Replace rusty nails with galvanised nails or stainless steel screws
If you're dealing with rusty nails in your decking, it's important to address the issue promptly to maintain the integrity of your deck. While there are temporary solutions, such as priming and painting over the rusty nails, this may only be a short-term fix. The most durable solution is to replace the rusty nails with new fasteners.
When choosing replacement fasteners, consider using galvanised nails or stainless steel screws. Galvanised nails are treated with a zinc coating that protects the metal from corrosion and rust. This treatment extends the life of the nail and makes it suitable for pressure-treated wood. Stainless steel screws are another excellent option for their rust-resistant properties.
If you opt for galvanised nails, ensure they are hot-dipped galvanised rather than electro-galvanised, as the former provides superior protection. Additionally, consider using ring shank galvanised nails, as they provide more holding power due to the increased friction during installation.
If you prefer screws, you can choose between coated outdoor screws and galvanised screws. Coated outdoor screws are designed to resist the chemicals in pressure-treated wood and are more time-consuming to install. However, they provide a more effective and long-lasting hold. Galvanised screws are another option, and they can be further coated with an epoxy-based polymer resin for added protection.
When removing the rusty nails, use a designated tool such as a nail puller to avoid damaging the wood. After nail removal, treat the nails with a rust remover or electrolysis, ensuring they are completely dry before reinsertion. If you're concerned about the appearance of the nail heads, opt for stainless steel deck screws with brown-coated heads, which will be nearly invisible once installed.
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Frequently asked questions
If the nails are raised, use a nail puller, such as the Cooper Group 56 Nail Puller, to remove them. If they are not raised, you can try using a mallet and crowbar to lift the decking planks up.
You can use a cats paw or flat bar with a cedar shim. Slip the shim under the bar and pull out the nail.
Sand the nail heads and apply a rust-inhibiting primer to the affected areas. You can also use a 'rust converter' before applying the primer.
You can leave the nails in place and prime and paint the deck. Alternatively, you can set the nails by driving them further into the decking with a hammer and then applying a specialised epoxy.











































