
Cut nails are commonly used in flooring and woodworking, providing a vintage look to projects. They are also used in construction and repair projects, including driving nails through wood and into concrete walls. Cut nails have a distinct square or decorative wrought head and a chisel-shaped end that severs fibres as they are driven into the wood. When driving cut nails, it is important to orient the wide section of the nail with the grain to avoid splitting the wood. This guide will explore the various techniques and tools used to drive cut nails effectively in different applications.
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What You'll Learn

Use a hammer to drive cut nails through wood and into concrete
When driving cut nails through wood and into concrete, there are a few methods you can use. One option is to use a hammer and nails specifically designed for concrete. Concrete nails are made of high-carbon hardened steel and have fluted shafts that help them sink into the concrete. Alternatively, you can use masonry nails, which are cheaper and less likely to bend. Make sure the concrete is at least three times as thick as the length of the penetrating fastener.
Before nailing, it is important to pre-drill pilot holes in the concrete. This can be done with a standard rotational drill, but a hammer drill will speed up the process. When drilling, take frequent breaks to let the bit cool down, as drilling concrete generates a lot of heat. If concrete dust builds up in the hole, remove the drill and blow out the dust before continuing.
Once the pilot holes are drilled, insert the concrete or masonry nails and use a framing hammer to drive them flush to the surface of the wood. Be careful not to bend the nail as you hammer it in. If the nail bends, pull it out and use a new one. To avoid this, you can use a hammer-set anchor nail, which has a wider bottom section designed to expand and hold the nail in place.
When nailing into wood, there are a few techniques to prevent the wood from splitting. One method is to predrill holes with a bit diameter that matches the thickness of the untapering side of the nails. If the wood splits easily, you can wiggle the bit as it enters the wood to create more room for the nail's shank. Alternatively, you can dull the tips of wire nails to reduce the risk of splitting. Another option is to use square nails, which sheer the wood fibres rather than wedging between them.
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Use a vacuum to clear concrete dust from the hole
When driving nails into concrete, it is essential to clear concrete dust from the hole to ensure a clean bonding surface. Here are some detailed steps and tips for using a vacuum to achieve this:
Choose the Right Vacuum
Select a vacuum that is suitable for the task. A shop vacuum, also known as a shop vac, is commonly recommended for this purpose. It is essential to use a vacuum with a HEPA filter to ensure that dust is captured effectively. A small shop vacuum can be sufficient, and you can use gorilla tape to attach a 1.25-inch hose to your romex tubing for dust removal.
Position the Vacuum Nozzle
Hold the vacuum nozzle directly over the hole to remove the dust. Ensure that the tip of the nozzle is positioned at a 90-degree angle to the hole. Press the nozzle gently onto the hole for a few seconds to ensure all dust is removed. You can also use a straw with the vacuum to assist in drawing air in from outside the hole, creating a suction effect.
Timing and Frequency
It is important to use the vacuum frequently during the drilling process. Concrete dust can quickly clog the hole, making it challenging for the nail to penetrate. Therefore, it is recommended to vacuum away the dust after drilling each hole and before attempting to drive the nail.
Combination with Other Techniques
In some cases, combining the use of a vacuum with other techniques may be beneficial. For example, using compressed air or a can of air blower in conjunction with a vacuum can help ensure a thorough cleaning of the hole. While using compressed air or a blower, have the vacuum ready at the hole to capture the dust being blown out.
Safety Considerations
When working with concrete, it is crucial to prioritize safety due to the health risks associated with concrete dust inhalation. Always follow OSHA guidelines and wear appropriate respiratory protection, such as a respirator, to safeguard your lungs from concrete dust exposure.
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Position the cut nail correctly to avoid splitting wood
When driving a cut nail, it is important to position it correctly to avoid splitting the wood. Here are some detailed instructions to help you with this process:
Firstly, it is recommended to use smaller nails with smaller diameters and rounded heads. The nail should be long enough to grip into a solid surface after penetrating the wood. A good rule of thumb is to ensure the penetration is at least equal to the thickness of the material being nailed, but twice as much is even better.
Before nailing, it is crucial to examine the wood for any knots or edges. Avoid nailing very close to knots, edges, or ends of the wood, as these areas are more prone to cracking or splitting. If you must nail near an edge or end, consider pre-drilling a hole that is slightly smaller than the nail's shank diameter. This reduces the pressure of nail penetration while maintaining a secure grip. Additionally, angling the nail can help start the nail farther away from the edge while still achieving a solid hold in the adjacent board.
When driving the nail, ensure that the parallel sides of the nail run with the grain of the wood. This alignment prevents the wedging action from splitting the board lengthwise. If you are nailing through multiple boards, orient the nail relative to the grain of the first board to avoid splitting. Once you reach the second board, clinch the nail across the grain for a stronger joint.
To further reduce the risk of splitting, you can blunt the tip of the nail by gently tapping it with a hammer. This process flattens the pointed end, allowing the nail to crush the wood fibres and push through them instead of forcing them apart. Additionally, lubricating the nail with petroleum jelly, oil, wax, soap, or even spit can reduce friction during the driving process and decrease the chances of wood splitting.
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Use galvanised cut nails for exterior applications
When working on outdoor projects, it's important to use nails that can withstand the elements. That's why galvanised cut nails are a great option for exterior applications. Galvanised nails are coated in zinc, which provides a protective barrier against corrosion and rust.
There are a few different ways to galvanise nails, but one of the most effective methods is hot-dipping. In this process, nails are completely immersed in a vat of molten zinc, resulting in both an outer coating of pure zinc and an inner coating of zinc-steel alloy. This double layer of protection ensures that the nails are highly resistant to corrosion and rust, even in outdoor environments where they are exposed to moisture and extreme temperatures.
It's important to note that not all galvanised nails are created equal. Some manufacturers cut corners by using hot-dipped galvanised wire to make their nails, which results in a thin zinc coating that can easily wear away. To ensure you're getting a quality product, look for nails that are double hot-dipped, like the Maze STORMGUARD® galvanised nails. These nails are dipped not once, but twice into molten zinc, ensuring a thick and uniform coating that will provide long-lasting protection against the elements.
When using galvanised cut nails for exterior applications, it's important to consider the type of project you're working on. Galvanised nails are commonly used for roofing, siding, trim, and decking. They are also useful for landscape applications, such as anchoring tents or tarps, or holding landscape items such as edging or flower beds in place. The galvanised coating provides added strength and durability, ensuring that your project will stand up to the elements for years to come.
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Use cut nails for flooring and vintage-look projects
Cut nails are large and strong, with four flat sides and a tapered wedge design. They are commonly used for installing flooring and other projects requiring a vintage look. They are hand-nailed into flooring and are preferred for their durability and superior holding power.
When using cut nails, it is important to orient the wide section of the nail with the grain of the wood. This will prevent the wood from splitting as you drive the nail in. The chisel-shaped end of a cut nail helps to sever wood fibres as it is driven into the wood, as opposed to wire nails, which compress the wood around them.
For hardwood flooring, the nail spacing requirements will depend on the width of the floorboards. For boards 2 to 2 3/4 inches wide, you will need one nail every 8 to 10 inches. Boards 3 to 3 3/4 inches wide require a nail every 6 to 8 inches, while boards 4 to 7 inches wide need one nail every 6 inches.
If you are working near the end of a floorboard or using a large spike, it is recommended to pre-drill a hole that is slightly smaller than the nail to prevent the wood from splitting. Additionally, if you are using cut nails for exterior applications, it is advisable to use galvanised cut nails or have them hot-dipped for added protection against the elements.
Cut nails are also suitable for other projects besides flooring, such as cabinetmaking, furniture repair, interior walls, and countertops. The distinctive square head or decorative wrought head can add a vintage or decorative touch to your projects.
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Frequently asked questions
Cut nails are used for installing flooring and are also used in woodworking, cabinetmaking, and smaller projects. They are also used to drive through wood and concrete.
Cut nails have four flat sides and a tapered wedge design. They have a chisel-shaped end and a square or decorative wrought head.
When driving cut nails into wood, the chisel end of the nail should be set across the grain to sever it and not act like a wedge. Start with a couple of light taps before driving the nail with harder hammer blows.
When driving cut nails into concrete, you need to pre-drill pilot holes in the concrete. Then, insert the concrete nails into the holes and drive them flush to the surface of the wood using a framing hammer.











































