Shop composite decking trim UK — colour-matched L-trim edging for deck edges and corners in 3.6m and 4.8m lengths from £20. UK delivery from yumiHome. Composite Decking Trim — Neat
Common questions about composite decking trim, edging and L-trim panels from yumiHome.
Composite decking trim is edging profile fitted to board ends and exposed edges for a neat, professional finish. Our L-trim panels wrap the edge of decking boards to cover cut ends and create smooth decking edging that matches your deck colour — a low-maintenance alternative to painting or capping timber edges.
L-trim is used for edging for composite decking along board ends, step faces, picture-frame borders and corner details where boards meet. It protects exposed edges from moisture, gives a consistent woodgrain look, and helps your installation look finished alongside fascia boards on the outer rim.
Fascia covers the vertical outer face of the deck subframe (the rim joist). Trim is L-shaped edging for horizontal board ends and detail work. Most decks use fascia on the perimeter and trim on board edges, steps and corners. See our composite fascia range for rim finishing.
Yes — L-trim works as composite decking corner trim where boards meet at right angles. Mitre or butt joints at corners for a clean composite corner trim finish. For dedicated step nosing, also browse our composite step edge profiles.
We stock L-trim in 3.6m and 4.8m lengths to match our decking board sizes. Colours include grey, silver, black, ash, oak, teak, chocolate and red brown woodgrain — use the shop filters above to find your match, or order a free decking sample first.
3.6m L-trim panels start from £20 and 4.8m panels from £24, depending on colour. Prices are per length — measure your edging runs before ordering. Trade account customers can access installer pricing.
L-trim slots over the board edge and is fixed with suitable screws — pre-drill to avoid splitting and allow a small gap for expansion in warm weather. Use screws from our decking accessories range. Step-by-step guidance is in our installation guides.
Beyond trim you will need composite decking boards, a joist subframe, clips or screws, and usually fascia for the outer edge. Add balustrade for raised decks with handrails.
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