Composite Decking Edge Trims and Fixings

Q: What accessories are available for Millboard® decking?

Millboard® accessories include Durafix ‘lost head’ fixings , multi-spacers , DuoFix guides , and trims like internal/external corners, starter trims, and perforated closures. This will help with hidden fixings and creating a flawless finish.

Q: Do you offer any finishing accessories for exposed ends?

We offer composite end caps , adhesive , and decking reviver to secure and refresh your installation, ensuring a polished, long-lasting result.

FAQs

Trims are used to finish and protect the edges, corners, and transitions in your decking or cladding installation. They help create a clean, professional appearance while also improving the long‑term durability of your project. Trims are ideal for:

Covering exposed board edges for a neat, polished look
Finishing corners on cladding installations
Framing steps and raised edges on decking
Protecting vulnerable areas from weathering and wear

We offer a range of composite and aluminium trims, available in colours to match our decking ranges. Our selection includes skirting boards and corner trims suitable for both residential and commercial applications.

Composite products are made from a blend of recycled materials designed to offer the look of timber with enhanced durability and reduced maintenance. Most boards combine recycled wood fibres with recycled plastics to create a strong, long‑lasting core that performs well in a range of environments.

our ProRange composite products feature an additional capped polymer shell. This protective layer improves resistance to weathering, scratches, stains and UV fading, helping the boards maintain their appearance over time. Surface finishes can vary—from smooth and contemporary profiles to detailed woodgrain effects that replicate the look and feel of natural timber.

Across the range, composite boards and panels are available in multiple colours and finishes, and they don’t require sanding, varnishing or painting - making them a low‑maintenance alternative to traditional timber.

Aluminium trims are ideal when you’re looking for a sleek, modern finish or require a more robust and hard-wearing option. They offer excellent wear resistance and provide a premium, high-end appearance—perfect for contemporary designs or high-traffic areas.

For composite products, we recommend using the appropriate starter clips, T-clip fixings, and stainless steel decking screws. These are specifically designed to ensure a secure installation and a clean, professional finish with minimal visible fixings.

Yes, we provide bamboo decking fixing clips and starter clips, both specifically designed for bamboo boards. These ensure secure and precise installation and necessary screws.

Millboard® accessories include Durafix ‘lost head’ fixings, multi-spacers, DuoFix guides, and trims like internal/external corners, starter trims, and perforated closures. This will help with hidden fixings and creating a flawless finish.

Yes. All our trims and fixings are made from high-quality materials designed to match the lifespan of your decking for long-term performance.

We offer composite end caps, adhesive, and decking reviver to secure and refresh your installation, ensuring a polished, long-lasting result.

You can refer to our installation guides for step-by-step instructions, or visit our gallery for inspiration and ideas on how to use our trims and fixings in your project.

Product Reviews

Some reviews shown may be from customers who purchased similar or related products.

ProDeck Composite Decking End Caps

Femi

Verified Buyer

Recommended 13/07/2026

Quality

Value

Price

Good quality and easy to install. Makes a real difference to the prodeck boards. Recommended.

3mm Composite Decking Locking Clips (Pack of 10)

Marek C

Verified Buyer

Solid clips, good quality 19/06/2026

Quality

Value

Price

You can tell these arent cheap knock-offs. Strong steel and they hold the boards firmly in place. Deck feels much more secure now and looks tidy too.

ProDeck Composite Decking End Caps

Jeremy Marshall

Verified Buyer

Really finishes the job off properly 03/04/2026

Quality

Value

Price

These make a big difference once the decking is down. Without them the ends just look a bit unfinished, but these tidy everything up nicely. They push in firmly, but I used Cladcos adhesive on all of them during installation just to make sure they stay put over time. With the amount of people walking over it and the weather changing, it felt like the sensible thing to do.

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ProDeck Composite Decking End Caps

3mm Composite Decking Locking Clips (Pack of 10)

ProDeck Composite Decking End Caps