Trex decking, a well-known brand of composite decking, is crafted from a combination of wood fibers and recycled plastic. When it comes to installing Trex decking, there are various techniques at your disposal, depending on your preferences, skill level, and tool availability. Whether you’re based in Georgia or anywhere else nationwide, Brazilian Wood Depot offers expert advice on making the most of your Trex decking installation.

Traditional Wood Framing

One approach to Trex decking installation involves using a traditional wood frame, much like you would with wood decking. In fact, many Trex deck boards are typically installed on a pressure-treated wood frame. Ensure that the joists are spaced no more than 16 inches apart for residential applications, though some professional Trex decking installers opt for 12-inch joist spacing.

This closer joist spacing may be recommended by the manufacturer, especially for complex installations where the deck boards are at a 45-degree angle. Trex’s composite nature makes it more flexible than wood, and spacing the joists closer at 12 inches on center reduces the chances of deck board sagging between the joists.

Pro Tip:

For added protection, use DeckWise Joist tape on top of your joists before installing your Trex deck boards. The top of the joist is a common location for rot due to water entrapment between the deck board and the joist. This step is crucial when working with Trex deck boards that come with warranties ranging from 25 to 50 years against issues like rot. DeckWise Joist tape is available for purchase at our online store.

Hidden Fasteners

Trex provides a hidden fastening system called Trex Hideaway, which creates a smooth, fastener-free deck surface. This system employs clips that attach to the grooved edges of the decking boards, securing them to the joists without any visible screws.

Discover the Trex Hideaway® Universal Hidden Fasteners available for purchase on our online store.

Surface Screws

If you prefer not to use a hidden fastening system, you can opt for color-matched composite deck screws designed to blend seamlessly with the decking material. To prevent splitting and mushrooming, it’s advisable to pre-drill and countersink the screws. Some slight mushrooming around the screw holes may still occur, as shown in the picture below, which is why many homeowners prefer the hidden fastening system.

We’ve covered various mechanical fastening options and tips for preserving your deck joists. Now, let’s delve into aesthetic choices to enhance your Trex decking installation.

Picture Frame Method

The picture frame technique involves installing a border or “picture frame” around the perimeter of the deck, using either grooved or non-grooved Trex boards. The main deck boards can then be attached with hidden fasteners or surface screws, while the border boards are secured with surface screws or finish nails.

We recommend avoiding grooved boards for the picture frame method to prevent the groove from being visible on the outer edge of the deck. As illustrated in the picture above, installing a picture frame border on your Trex deck yields a cleaner and more professional appearance, far superior to running the deck boards the full length with all the ends exposed.

Fascia Boards

For a refined look, consider installing fascia boards along the perimeter of your Trex deck. These boards are designed to cover the outer edge of the rim joists, creating a polished, finished appearance.

As shown in the image above, incorporating stepped fascia gives your deck a high-end designer look. Install your fascia first to ensure your picture frame deck board overhangs the fascia, providing a more aesthetically pleasing result. Fascia boards are relatively affordable, mainly used to cover the outer rim joists. When planning and installing your Trex deck, investing in quality fascia is essential.

You can find Trex Fascia available for purchase on our online store, with direct shipping to your home or job site. To explore our complete range of Trex decking products, visit our online store.

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