How to Finish the Ends of Composite Decking – 5 Professional Solutions

Wondering how to finish the ends of your composite decking and give it the edge that takes it to the next level? In this guide, we address the A to Zs of the finer details and show you how to fully finish your deck to perfection.

Structurally and aesthetically, it’s important to round off the ends of composite decking. It strengthens the entire framework and looks both professional and stunning.

Below, we walk you through the different finishing solutions, including their pros and cons, so that you can choose what best suits you and your deck. Remember, we’re here for any questions and concerns, so don’t hesitate to contact us! 

1. Picture Frame Boarding

Picture frame boarding, or picture framing, refers to bordering (or framing) the perimeter with decking boards. It’s aesthetically appealing and also provides a visible border that helps prevent trips. However, it can be slippery, which is a concern in the UK with its unpredictable wet-weather conditions.

Compared to other deck-end finishes, picture frame boarding is more expensive and labour intensive. You must:

• Select your material (either timber or composite decking).
• Add blocking to the substructure or foundation. Here, joists are essential.
• Install the picture frame boards.
• Install the infill boards.

These frames run perpendicular to or along the edge of the main structure, and the slats or panels are often rotated to create contrasts and emphasise the ends.

2. Composite Fascia Boards

Composite facia boards are highly durable and weather-resistant ends that beautifully round off your decking. They fortify your deck while closing it off to help limit the entry of water that causes rot and structural weaknesses. Supremely low maintenance and durable, composite fascia boards are a versatile and comprehensive finishing solution.

Using non-slip decking and fascia boards reduces the risk of slips and falls, and is especially recommended in the UK, with its rainy climate. Composite fascia boards are lightweight and easy to install:

• Choose your colours. You can go with matches for uniform flow or contrasting fascia boards for a striking effect.
• Cut the desired lengths and mitre the joints for a seamless finish.
• Attach the boards with screws or adhesive. Pre-drill holes when using screws to avoid damage.
• Leave a 4mm to 6mm gap between joints for expansion.

3. Composite Edge Trims

Composite edge trims are nifty L-shaped fixtures that hug edges and corners to create a clean, seamless finish. Made from the same material as our composite decking boards, they’re durable and weather resistant, so they are a cost-effective decking solution in the long run.

Thanks to our slip-resistant materials, these finishes reduce safety risks, especially in wet weather. To install composite edge and corner trims, simply:

• Prepare the edging and corner trims by cutting the desired lengths and mitring joints.
• Apply adhesive and position the edging or corner trim into place. Leave 4mm to 6mm gaps to allow for expansion.
• If using screws, pre-drill holes and carefully secure them to the decking with the screws.

4. Bullnose Edges

Bullnose edges are special finishing decking boards with smooth, rounded edges. They’re great for steps and stairs. Covering sharp edges, they also reduce trip hazards, and, because they’re made with the same hardy non-slip material as our composite decking, our bullnose edges are a safe choice.

Initial installation costs might be pricey, but thanks to the supreme durability and low maintenance, it’s the cost-savvy choice in the long term. It’s a cinch to install these lightweight composite bullnose edges:

• Decide on a colour scheme. Remember, our colour options complement our composite decking and fascia boards.
• Attach the applicable clips to the joists.
• Cut your bullnose trim to the desired lengths and mitre joints.
• Align the bullnose trim with the edges.

5. End Caps and Plugs

End caps and plugs give your deck that final finish by concealing hollow ends and other exposed areas. Made from non-slip material, they curb the risks of slipping and falling. By sealing open areas, these nifty fixings help to prevent water ingress and issues such as warping.

Our end caps and plugs are low maintenance and ideal for hollow boards. Thanks to their push-fit design, they are quick and easy to install:

• Apply an approved exterior-grade adhesive. 
• Push the end cap into the hollow board cavities.

Tips for Finishing the Ends of Composite Decking

There are a few important things to keep in mind when finishing the ends of your composite decking:

• Clean your workspace and the area to which you’re affixing the trims. Debris, such as leaves or dust, can affect the strength of bonds and influence the end result.
• A 5mm gap (the 4mm to 6mm golden rule) between trims is essential for expansion and contraction in heat and cold to prevent warping.
• Planning and budgeting are key to avoid waste, shortfalls and overspending.
• Call in professional help if you need it.
• Check out our complete guide on installing composite decking.

Finish Your Composite Decking Ends Effectively With Dino Decking

Explore our composite decking solutions.

From decking panels to fascia boards and trims, Dino Decking is your one-stop solution for all your composite decking requirements. Eco-friendly, all our products are made from premium recycled materials that are ultra-durable and weather resistant, making them the ideal outdoor, lasting solution for UK conditions.

Our finishing trims help to improve slip resistance in wet conditions while boosting the structural integrity and strength of your deck. These fixings deliver maximum protection and take the aesthetics of your deck to the next level.

Contact us to make your dream deck a reality!

FAQs