
Clapboards are thin, overlapping wooden planks that have been used since Colonial times to protect houses from the weather. The process of installing clapboards, also known as clapboard siding, may seem straightforward, but it requires attention to detail to ensure it is done correctly. One of the key steps in this process is nailing the clapboards to the studs. This can be done in several ways, including face nailing, blind nailing, and nailing from the top or bottom of the board. The specific method chosen may depend on the type of clapboard and personal preference. In this article, we will explore the different techniques for cutting nail heads on clapboards and the tools required for each approach.
| Characteristics | Values |
|---|---|
| Tools | Side cutters, lineman's pliers, boot pinch pliers, pneumatic denailer, carbide burr, grinder, drill, hammer, punch, nail pullers, slide hammer, face shield, gloves, hole saw, fencing pliers, horseshoe nippers |
| Techniques | Leverage the nail out of a hole, cut the head off, punch and hammer the nail through the wood, drill the centre of the nail, use a nail puller, raise the nail head above the wood |
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What You'll Learn

Use a cutoff wheel to get under the nail head
Using a cutoff wheel to get under the nail head is a quick and effective method to separate clapboards. This technique is particularly useful when dealing with a large number of nails, as it can significantly reduce the time and effort required.
To begin, it is important to prioritize your safety. Cutting off nail heads can generate sparks and debris, so wearing safety goggles and protective gear is essential. Keep a fire extinguisher nearby as an added precaution.
The cutoff wheel can be attached to a rotary tool, which serves as a versatile device for various tasks, including cutting off nail heads. Place the rotary tool on a flat surface, positioning the cutoff wheel directly over the nail head that needs to be removed. Gently apply light pressure by dipping the tool down so that the disk makes contact with the nail. If the first pass doesn't cut through completely, adjust the angle of the rotary tool and make a second pass.
It is worth noting that even after cutting off the nail head, there may still be a portion of the nail protruding from the wood. In such cases, use a hammer to gently tap the remnants back into the wood and shape any pulled surface fibers back into place.
Cutoff wheels are available in different sizes, and you can choose between a 4-inch or 4 1/2-inch grinder with a skinny blade. The size and type of cutoff wheel you select will depend on the specific requirements of your project and the level of precision needed.
By following these steps and using a cutoff wheel, you can efficiently and effectively cut off nail heads on clapboards, ensuring a smooth surface and a professional finish.
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$4.55 $4.99

Use a carbide burr in a 1/4 grinder
If you want to cut the heads off nails without raising them, you can use a carbide burr in a 1/4" grinder. This method is suitable for cutting the heads off a thousand nails and is faster than using a nail puller.
Before you begin, wear a face shield and gloves to protect yourself from the chips. You can use a drill bit that is slightly bigger than the diameter of the nail. If the nail heads are small, you can use a punch and hammer to drive the nails through the clapboard. If the nail heads are large, you can drill the centre of the nail head to pop off the outer ring, and then pull the nail out.
If the nail heads are glued, you may need to use horseshoe nippers, a reciprocating saw, or a drill. If you want to keep the clapboard in good condition, avoid using a grinder, as this may burn the paint and cause rust.
Carbide burrs are available in a range of shapes, including cylinder, ball, oval/egg, and can be used for grinding, deburring, shaping, and finishing applications. They are made from heat-treated tungsten carbide for extended tool life and are compatible with most die grinders and rotary drills.
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Use a pneumatic denailer to punch nails through the wood
Using a pneumatic denailer is an effective method to punch nails through the wood and drive them out. This tool is especially useful when dealing with a large number of nails, as it can significantly speed up the process compared to manual methods.
A pneumatic denailer is a powerful device that uses compressed air to drive nails through the wood. It is designed to punch nails from either end, making it a versatile tool even if the nail head is not accessible. This feature is particularly advantageous when working with clapboards, as the nails may be in challenging positions.
Before using the pneumatic denailer, it is essential to ensure that you have the necessary equipment, such as an air compressor, and adequate space to operate it safely. If you don't have these resources, renting the tool from a local home improvement store could be an option, as suggested by an electrician on Stack Exchange.
When using the pneumatic denailer, follow these steps:
- Position the denailer over the nail, ensuring that it is securely in place and will not slip during the punching process.
- Activate the denailer, using the compressed air to drive the nail through the wood. Depending on the nail's length and the thickness of the wood, you may need to adjust the pressure or angle of the tool to ensure the nail is completely punched through.
- Once the nail is driven through, it may be necessary to use a claw hammer, pry bar, or cats paw to lift and remove it entirely from the clapboard.
By following these steps and utilizing a pneumatic denailer, you can efficiently punch nails through the wood, saving time and effort in the process of removing nails from clapboards.
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Use a drill bit bigger than the nail's diameter
If you want to cut the heads off nails, one option is to use a drill bit that is slightly bigger than the nail's diameter. This method can be slow, but it can be useful if you want to keep the siding in good condition.
To do this, you will need to use a spring-loaded centre punch to get a start dimple. Then, use a drill to cut off the nail head. This method can be used for both screws and nails.
It is important to wear protective gear when using power tools. Make sure to wear a face shield and gloves to protect yourself from any debris.
If you are looking to cut the heads off a large number of nails, it may be worth considering other methods or tools, such as a nail puller, a grinder, or a carbide burr.
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Use a punch and hammer to drive nails through
When cutting nail heads on clapboards, one of the methods you can use is a punch and hammer. This method is suitable if the nail heads are small. Here is a step-by-step guide on how to do it:
Firstly, you need to select the right hammer for the job. There are many types of hammers available, each designed for specific tasks. For driving nails, a curved claw hammer is a good choice for its versatility. It has a straight edge that enables the hammerhead to be flush with the wall. If you are working in a tight space, opt for a smaller hammer with a U-shaped head.
Next, prepare the nail and hammer for driving. Hold the nail near the top, just under the head, with the sharp tip positioned exactly where you want to drive it. Ensure the nail is held perfectly perpendicular to the nailing surface. Now, place the punch at the centre of the nail head.
Then, with your other hand, hold the hammer and draw it back, using elbow motion and a slight backward wrist bend. Take a full swing to drive the nail through the clapboard. The force and energy of the blow, delivered almost instantly, will drive the nail into the wood.
If you are concerned about damaging the clapboard, you can use a piece of plywood between the hammer and the clapboard to protect the surface. Alternatively, cover the hammerhead with a tennis ball, cutting an 'X' just large enough for the hammerhead to slide through.
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Frequently asked questions
You can use a cutoff wheel to cut nail heads. If you can get it under the head, it will cut through the nail quickly.
You can use a carbide burr in a 1/4" grinder to cut the heads off. Make sure to wear a face shield and gloves to protect yourself from the chips.
Yes, you can use a pneumatic denailer, which punches the nails through the wood and drives them out. You can also use a hammer and a crowbar to remove the nails.
You can use a drill bit that is slightly larger than the diameter of the nail. This will allow you to drill out the head without damaging the surrounding material.
It is important to wear protective gear, such as a face shield and gloves, to prevent injury from flying debris. Always use tools properly and follow the manufacturer's instructions.











































