Which fastener is most commonly used in decking?

Deck screws are the most commonly used fasteners in decking for several reasons. They are specifically designed for outdoor use, which means they are often coated to resist corrosion and weathering that can occur over time. This makes them more durable than other fasteners, which is critical for structures exposed to the elements.

Deck screws have a coarse thread that allows them to grip the wood securely, providing a strong and stable connection. This helps to prevent movement and ensures that the deck boards stay in place, enhancing the longevity and safety of the structure. Additionally, the design of deck screws allows for easy installation, often requiring only a power drill or screw gun, which speeds up the building process.

In contrast, while nails can be used in decking, they may not provide the same level of holding power as screws and can work loose over time. Wood glue is not typically used as a primary fastener in decking construction because it doesn't provide the structural integrity needed due to potential moisture issues and temperature changes. Bolts, while strong, are generally more complex to install and are not commonly used for the attachment of deck boards. They are typically reserved for structural connections, making deck screws the preferred and more practical choice for decking installation.