What Size Roofing Nails do Roofers Use?
When you're looking for nails specifically to work on a roof, this makes your decision a very important one. The wrong choice in roofing nails could mean going over budget or having your yard work ripped apart the next time a big storm blows in.
We don't want either of these scenarios for you! The best way to select the correct type of roofing nails for your upcoming project is to learn which type of nails professional roofers use. Let's begin by discussing the size of the fasteners.
Which Sizes are Available?
When looking at the size of the nail, you have two things to consider: the gauge and the length. Both factors determine whether the fastener will hold shingles securely through years of harsh weather.
Gauge
Nails are sized by their gauge number. The lower the gauge number, the thicker the nail. Roofing nails are available in 12-, 11-, and 10-gauge. Under most building codes in North America, 12-gauge is the minimum thickness of nail allowed on a roof. Roofing nails that are 11- or 10-gauge are also allowed by most building codes as they are thicker and sturdier.
Many homeowners often ask what size nails for roofing shingles are recommended, and the answer usually depends on striking the right balance between thickness for holding power and ensuring the shingle doesn’t crack.
Length
Nails made for roofing are available in lengths ranging from 3/4- to 3-inches. Professional roofers are experts at using just the right length of nail so that the decking is completely punctured by the nail. The goal here is for the puncture to be complete so that the whole diamond tip is past the wood.
Often, you will find roofing nails identified by their penny length. The penny system is an old way of classifying nails and is represented by the letter “d.” A 1-inch nail will be listed as 2d, a 2-inch nail will be listed as 6d, and so on. When choosing what size nail you need for roofing projects, professional roofers recommend that the nail fully penetrates the decking for a secure, long-lasting hold.
What Makes These Nails Different?
Roofing nails are cleverly designed to help you do your job. Yes, you're looking for 12-, 11-, or 10-gauge nails, but not just any nails will do. Though nails vary greatly in material, size, and type, all nails designed for roofing share one helpful characteristic: a diamond‐shaped point. This point is the exact right shape to keep the decking intact when it punctures through. How helpful!
Additionally, shank style can make a big difference. Ring-shank nails, for example, are designed for maximum grip and are a top choice in regions that face heavy winds. Smooth-shank nails are easier to drive and remove, but may not hold as firmly.
Recommended Nail Lengths for Roofing Projects
If you’re a DIYer or even a professional, you might ask yourself, “what roofing nail length should I use?” The general rule is that roofing nails should be long enough to penetrate at least 3/4 of an inch into the decking material. For most asphalt shingles, 1 1/4-inch nails are considered standard, while thicker materials like wood shakes or multiple shingle layers may require longer nails, up to 2 inches or more.
Knowing what length roofing nail to use helps ensure a secure roof that won’t loosen or lift over time.
Other Factors to Consider When Choosing Roofing Nails
While gauge and length are the main details to look at, there are a few other factors that can influence your choice:
Nail Material
Roofing nails are commonly available in steel, galvanized steel, stainless steel, and copper. Galvanized nails are the most popular option because they resist rust, while stainless steel and copper are excellent for coastal areas where salt air accelerates corrosion.
Shank Style
Shank style affects grip strength. Smooth-shank nails are easy to drive but can loosen over time. Ring-shank nails offer much stronger holding power, which makes them ideal in windy climates. Square-cap nails are often used for roofing felt or underlayment.
Building Codes & Manufacturer Guidelines
Always double-check local building codes and the manufacturer’s recommendations for shingles. For example, codes in storm-prone areas often specify exactly what size nails for roofing shingles should be used to ensure a secure installation that meets safety standards.
By paying attention not only to size but also to materials and building code requirements, you’ll ensure your roof remains durable and weather-resistant for years to come.
Order Nails Online From Fastener USA
The size of your nail is only the beginning. There are a few basic types of roofing nails. These include smooth shank, ring shank, and square cap. You can find each of the three types of roofing nails in several materials, like stainless steel and copper. Copper nails are strong and naturally resist rust and corrosion.
Clearly, you have a lot of options. If you're not confident shopping our online catalogue on your own, reach out to our industry experts and ask a few questions. We are here to help!