Yes, you can screw down composite decking.

One way you can install and secure composite decking boards to the subframe is through the use of screws. Screwing down composite decking boards has been a method of installing plastic-wood decking for years. To install your composite decking, you should purchase screws that are specially designed for the task. This is necessary since the correct composite decking screws can provide a good finish and help to increase the durability of your deck.

Aside from screws, there are other methods of fixing composite decking. This article will explore the different methods used to screw down composite decking.

Type of Composite Deck Screw 

Composite decking is not like wood decking that can be installed with wood screws.  As composite decking boards are stronger than wood, they require a screw that is designed especially for securing the decking boards to the subframe.

Some types of screws are made of high-quality steel and are available to purchase from Composite Warehouse.

Some of them include: 

Carpenter Mate Screw

The Carpenter Mate screw is a popular type of screw. One good thing about Carpenters Mate screws is their resistance to corrosion. In most instances, after driving the screw down into the material, the screw head is left exposed. If the screw is not of a high-quality similar to that of a Carpenter mate screw, the head will rust, giving your composite decking a poor appearance.

Carpenter Mate screw is highly durable and will not rust with long service life. Also, the screws are made with thick steel to increase performance. 

Trap Ease II Composite Decks Screw

Aside from the Carpenter Mate Screw, there is the Trap Ease II Composite Deck Screw.

The screw is designed with various colour so that they will match the colours of any composite decking available. An advantage of the Trap Ease II composite deck screw is that it solves the problem of colour inconsistency. Most composite decking owners do not like using screws because the head of the screw will show a different color from that of their composite decking. Trap Ease II screws are available in red, grey, light grey and dark brown.

Fasten Master Screw

Another screw that is used for composite decking is a Fasten Master screw. This screw is perfect if you want to utilise it for any type of composite decking. It can withstand all types of weather because its head has an anti-corrosion coating and is long-lasting. After selecting a suitable screw, you can start thinking of how to install your composite decking.

How to Install Composite Decking with Screw

Step 1: Build Your Composite Decking Subframe

The subframe is the structure where the composite decking boards are laid on top. Ensure the subframe is strong enough to withstand the weight of the decking boards. 

Step 2: Lay the Composite Decking

After you have laid your composite decking boards in place, proceed to secure the boards with suitable screws to the subframe. Pay careful attention to ensure the correct expansion gaps are left between the decking boards and any fixed objects, such as walls or fences.

Check with the manufacturer or supplier for the correct spacing between boards to account for thermal expansion. This will prevent any splitting or lifting of the boards. 

You can repeat the method until you have completed fastening the deck.

Hidden Fastener Solution

Please note: The latest type of composite decking boards uses a hidden fastener solution to secure the decking boards to the subframe. This means the boards are not secured with screws through the top of the board into the subframe below. Therefore, provide a smooth finish with no screws visible on the top surface of the composite decking boards.


One way to install a composite decking is by using screws to hold it in place. Some screw types come in different colours that match the colour of your composite decking.