Types of Nails? (Choose the Right Nail for Every Project)
Choosing the right types of nails for nail guns is essential for structural integrity and project success. This guide breaks down the different head shapes, shank types, and coating options to help you select the perfect fastener for your next construction or woodworking job.
If you have ever spent time in a hardware store staring at an entire aisle of boxes, you know how overwhelming it can be. Nail guns are incredible tools that save you hours of manual labor, but they only work well if you feed them the right “food.” Learning about the different types of nails for nail guns is the secret to moving from a frustrated amateur to a confident builder. Whether you are framing a wall or installing crown molding, the right fastener makes all the difference.
Many beginners make the mistake of thinking all nails are essentially the same. They might grab the cheapest box off the shelf, only to find that their nail gun jams constantly or the boards pull apart a week later. Using the correct types of nails for nail guns ensures that your projects stay together for years to come. In this guide, we will walk through the anatomy of a nail, the importance of coatings, and how to pick the perfect hardware for your specific project.
Understanding the Anatomy of a Nail
To understand the different types of nails for nail guns, you first need to look at what actually makes up a nail. While they may look simple, each part is engineered for a specific function. By paying attention to the head, shank, and tip, you can easily identify which nail belongs in which gun.
Head Styles and Their Roles
The head of the nail is what stops the nail from driving all the way through the wood. In framing, you will often see “full-round” head nails and “clipped-head” nails. Full-round heads offer maximum surface area, which is required by many building codes for structural framing. On the other hand, clipped-head nails have a portion of the head removed. This allows you to fit more nails into a single magazine, meaning less time spent reloading.
Shank Designs for Grip
The shank is the body of the nail. Smooth shank nails are the most common and are great for general construction because they are easy to drive. If you are working on a deck or subflooring, you might need ring shank nails. These have circular grooves that act like barbs, making them very difficult to pull out. Screw shank nails are also common; they rotate as they enter the wood, providing a grip almost as strong as a wood screw.
Points and Tips
The tip of the nail determines how the fastener enters the lumber. Most nails for nail guns come with a diamond point, which is standard for most applications. However, some specialized nails have blunt tips to prevent splitting when working near the edge of a board. Choosing the right tip can save you from having to fix cracked wood later on.
Collation Types: Keeping Your Gun Happy
How do the nails stay together in the strip? This is called collation. If you try to put a paper-collated strip into a tool designed for plastic, you will likely have a bad day. The types of nails for nail guns are categorized by how they are bundled, and this is determined by your specific nailer.
Plastic Collated Nails
These are held together by a plastic strip. They are very common in framing nailers. One downside is that the plastic fragments can fly off when the nail is fired, which can be annoying to clean up. However, they are highly weather-resistant, making them a solid choice for outdoor work.
Paper Collated Nails
Paper collation is popular because the paper strips tend to disintegrate as the nail is driven. This means there is no messy plastic to pick up after the job is done. They are often used in interior framing. Because the strips are thin, they allow for tighter spacing in the magazine.
Wire Collated Nails
You will often see wire collation on heavy-duty framing nails. The nails are held together by two thin wires. These are extremely durable and can handle the rough conditions of a job site better than paper. They are the go-to for professionals who are hard on their equipment.
Choosing the Right Coating for Your Project
One of the most important aspects of choosing types of nails for nail guns is the coating. If you use the wrong material, your project might rust, stain the wood, or even fail completely. Think about where your project will live before you buy your nails.
Bright Finish
Bright nails have no protective coating. They are shiny and meant for indoor use only. If you use these on an outdoor fence, they will start to rust almost immediately when exposed to moisture. The rust will leave black streaks on your lumber and weaken the connection over time.
Hot-Dipped Galvanized
These nails are dipped in molten zinc. This creates a thick, protective layer that fights off rust. These are the gold standard for outdoor projects like decks, sheds, and exterior siding. If your project is exposed to the elements, always reach for the hot-dipped galvanized box.
Stainless Steel
Stainless steel is the ultimate choice for corrosion resistance. It is more expensive than galvanized steel, but it is worth the cost if you are working near saltwater or with highly acidic woods like cedar or redwood. Cedar contains tannins that react poorly with cheaper metals, causing ugly black stains. Stainless steel solves this problem entirely.
Nail Gauge and Length
The gauge refers to the thickness of the nail. In the world of finish nailing, a higher number means a thinner nail. For example, an 18-gauge nail is much thinner than a 15-gauge nail. Using the wrong gauge can either cause your finish work to look messy or fail to hold the trim securely.
Finish Nails vs. Brad Nails
Brad nails are typically 18-gauge and are perfect for delicate trim work. Because they are so thin, they rarely split the wood and leave behind a tiny hole that is easily covered with wood filler. Finish nails, on the other hand, are usually 15 or 16-gauge. They are thicker and have larger heads, making them better for heavy baseboards or door casings that need more holding power.
The Golden Rule of Length
How long should your nail be? A good rule of thumb is that the nail should penetrate the base material by at least two-thirds of its total length. If you are attaching a half-inch piece of trim to a wall, you need a nail long enough to go through the trim, the drywall, and deep into the stud behind it. If the nail is too short, the trim will eventually pop off.
Safety and Compatibility Tips
Even if you know the different types of nails for nail guns, you still need to be safe. Never force a strip of nails into a magazine if it doesn’t fit easily. If you have to push or wiggle it, you are likely using the wrong type of fastener for that specific tool.
Reading the Tool Specs
Every nail gun has a label, usually on the side of the magazine, that tells you exactly which nails to use. This will list the angle of the collation (like 21 degrees, 28 degrees, or 30 degrees) and the gauge range. Always follow these guidelines to prevent the internal firing pin from becoming damaged or causing dangerous jams.
Personal Protective Equipment
Always wear safety glasses when using a nail gun. Even with the right types of nails for nail guns, there is always a chance of a nail ricocheting or a piece of plastic collation flying into your eye. Keeping your work area clean also helps prevent trips and falls, which is the most common cause of accidents with power tools.
Conclusion
Mastering the different types of nails for nail guns is a fundamental skill for any builder or DIY enthusiast. By understanding how head shapes, shank designs, coatings, and gauges work together, you ensure that every project is built to last. You will save money by buying the right box the first time and save your sanity by avoiding constant tool jams.
Remember that when you are working on a project, the nail is the unsung hero that holds everything together. Don’t let your hard work go to waste by using the wrong fastener. Take the extra moment to check your nailer’s requirements, consider the environment of your build, and choose the hardware that matches the quality of your craftsmanship. Happy building!
Frequently Asked Questions
How do I know which nail size my gun takes?
Check the side of your nail gun’s magazine for a label that lists the approved nail lengths, gauges, and collation angles. If the label is worn off, look up the tool’s model number online to find the manufacturer’s manual.
Can I use any brand of nails in my nail gun?
You can use different brands as long as the gauge, length, and collation type match the tool’s requirements. Always ensure the collation angle (e.g., 21-degree vs. 30-degree) is a perfect match to avoid severe jamming.
What happens if I use bright nails outside?
Bright nails have no protective coating and will begin to rust quickly when exposed to moisture. This rust will weaken the hold of the nail and cause ugly, dark stains to bleed into your wood surfaces.
Why do my nails keep bending when I fire the gun?
This is often caused by trying to drive a nail into a knot or a very hard piece of lumber, or using a nail that is too long for the tool’s power. It can also happen if your air pressure is set too low for the density of the wood.
What is the difference between brad nails and finish nails?
Brad nails are thinner (18-gauge) and are used for delicate trim and small crafts where you want to minimize wood splitting. Finish nails are thicker (15 or 16-gauge) and provide more holding power for heavier materials like baseboards.
Are clipped-head nails allowed for all framing projects?
While convenient for higher capacity, some local building codes prohibit clipped-head nails in specific structural applications. Always check your local building department requirements before starting a framing project.
