What Size Screws Need For Deck Boards?

If you’re planning on building a deck, one of the key decisions you’ll need to make is what screws to use for the deck boards. In this blog post, we’ll look at the different types of screws available and give some recommendations on which screws are best for deck boards. Also, we have a list of tips depending on the type of material your deck is made of. With the right screws, your deck will be strong and durable δΈ€ perfect for hosting summer BBQs or relaxing in the sun with a cold drink. It is also important for you to calculate the correct number of screws, for the reliability of the construction. So let’s get started!

While there are many factors to consider when selecting screws, such as length and head type, the most important aspect is diameter. In general, you’ll want to use screws that are at least 3/8″ in diameter for attaching deck boards. If you’re working in a particularly challenging environment, such as on a rooftop deck, you may want to consider using screws that are up to 1/2″ in diameter. Using larger screws will provide more holding power, which is especially important in areas where the decking is prone to movement or shifting.

There are a few different types of screws that can be used for deck boards:

Regular wood screws

These are the most common type of screws and can be used with most types of decking. They’re available in a range of lengths and widths, so you can choose the size that best suits your needs.

Deck screws

Deck screws are designed specifically for decking, and they have a sharp point that makes them easy to drive into the wood. They’re also coated with a special sealant that helps protect the wood from water and moisture.


Spikes are a type of screw that’s used for fixing decking boards to the frame of the deck. They have a sharp point that makes them easy to drive into the wood, and they’re available in a range of lengths and widths.

When selecting screws for your deck, it’s important to choose a type that is compatible with the material you’re using. For example, if you’re using cedar or redwood decking, you’ll want to use corrosion-resistant screws. Some types of screws that are compatible with these materials include stainless steel screws and coated deck screws. If you’re using treated lumber or composite decking, any type of screw will work, although it’s important to avoid galvanized or zinc-coated screws, as they can corrode when in contact with the treated lumber.