Composite decking end details and perimeter finishes
Plan exposed deck ends and perimeter transitions before ordering boards. The edge finish should suit the board section and preserve its approved movement arrangement.

Selection considerations
Mark outside corners, steps, thresholds and changes in direction. Ask which caps or finishing profiles are compatible with the selected board. A cap intended for one hollow geometry may not fit another board of similar width.
Check support at cut ends and avoid trapping the board between rigid boundaries contrary to its installation instructions. Keep access to drainage or services where required. Include edge components in the quantity schedule so the final appearance does not depend on improvised strips cut from unrelated profiles.
Before you specify or order
- Draw corners and thresholds
- Match caps to section geometry
- Include end supports and edge components
Relevant BULDX catalogue examples
These records illustrate the product types discussed. Compare the full specifications before selecting; listing here does not establish project suitability or make the items interchangeable.

BDX-DK-16522-CL · Product geometry from the catalogue; a family illustration may be shared by variants. Consult the selected technical documents for dimensions and the approved fixing detail.| Product and code | Selected catalogue fields |
|---|---|
BDX-DK-16522-CLClick-Lock Deck Profile 165 × 22Deck Profiles |
|
BDX-DK-5CFive-Channel Deck ProfileDeck Profiles |
|
BDX-DK-SLSolid Deck ProfileDeck Profiles |
|
Common question
Can any matching-colour cap close a deck board?
No. Its connection geometry and the movement detail must also suit the board.
References and scope
Product fields are from the BULDX catalogue. Confirm the current selected drawing, supporting performance documents and approved project detail before ordering. External references, where listed, provide background guidance and do not certify these products.