ThePipingMart Blog Fasteners 7 Types of Deck Screws and Their Uses

7 Types of Deck Screws and Their Uses

Deck Screws

Choosing suitable types of screws is crucial when building or repairing a deck. The screws you use can affect the strength and integrity of the deck, not to mention its aesthetic appeal. With so many options on the market, it can be overwhelming to know where to start. That’s why we’ve put together this ultimate guide to types of deck screws.

Types of Deck Screws

Coated Deck Screws

Coated deck screws are some of the most popular screws for deck building because their coating makes them resistant to rust and corrosion. The layer can come in various materials, such as stainless steel, vinyl, or epoxy. These screws offer long-lasting durability and can withstand harsh weather conditions and chemicals. However, the coatings can wear off at some point, and you should consider re-coating your screws if you notice any signs of rust.

Composite Deck Screws

Composite deck screws are specially designed for composite decking materials. These screws have a reverse thread that helps keep the screw in place on the board as you drive it in. They’re made of high-quality materials such as stainless steel and coated with composite material that matches the colour and texture of your deck. These screws deliver a seamless finish and provide extra holding power to your boards.

Structural Deck Screws

Structural deck screws are also called lag screws or ledger screws. They’re made of heavy-duty materials such as coated or stainless steel and anchor the ledger to the deck frame or attach the deck to the house. These screws have a large diameter and a thick shank to support and prevent the log from pulling away from the home. They’re ideal for decks that require extra reinforcement, such as multi-story decks or ones with heavy loads.

Stainless Steel Deck Screws

Stainless Steel deck screws are a high-performance solution for deck building. They’re made of a non-corrosive material that can withstand exposure to moisture, heat, and harsh chemicals. These screws come in various grades, such as 304, 316, or 305, each with specific properties. For example, 316-grade stainless steel offers the highest corrosion resistance and is ideal for coastal areas or areas with high humidity.

Wood Deck Screws

Wood deck screws are versatile and can be used for various types of wood, including hardwood and softwood. These screws have a coarse thread that grips the wood tightly and prevents the boards from splitting or cracking. Wood deck screws come in various sizes and lengths, and you should choose the right size based on the thickness of your boards.

Galvanized Deck Screws

Galvanized deck screws are a must-have for any deck project. Besides providing a stronghold, the galvanized coating helps prevent corrosion from exposure to the elements. Choosing the right deck screw can make all the difference in ensuring your deck stays secure and safe for years. As an expert, I highly recommend using galvanized deck screws for any outdoor construction project.

Self-Drilling Screws

Self-drilling screws are an ingenious product that has revolutionized how we assemble materials. With the ability to drill and tap its hole, this type of screw eliminates the need for pre-drilling, saving installation time and reducing overall costs. Self-drilling screws also reduce the risk of stripped threads and other common installation errors. If you’re looking for an efficient and reliable way to join materials, self-drilling screws are the perfect choice.


Choosing suitable types of deck screws is essential to your deck’s safety, durability, and appearance. Coated deck screws, composite deck screws, structural deck screws, stainless steel deck screws, and wood deck screws are some of the most common types of deck screws on the market. Consider the type of material you’re working with, your deck’s location, and the load it’ll bear when choosing your screws. With suitable screws, your deck can withstand years of use without showing any signs of wear and tear.

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