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Installing Assured Composite® Decking Using Metal Clips

Decking Fastclips For Composite Decking

Use Starter Clips To Align The Deck

Fix decking starter clips to the edge of the framework at every joist. Screw through the hole on each decking starter clip with the screws provided ensuring that the screws are fully screwed into place to prevent catching on the composite decking board underneath.

Fix the first composite decking board by pushing into the decking starter clips. Check the composite decking board is securely in place before continuing.

We recommend a maximum joist overhang of 20mm.

Fixing Metal Decking Fastclips

Fix metal clips to the first composite decking board at every joist with the screws provided. Push the metal clips into the decking board groove and screw the other side down through the hole. Fix the next decking boards into place by pushing into the metal clips.

Where composite decking boards meet leave an 8mm expansion gap.

​Continue with the same process until the last decking board, cutting decking boards where required.​

Fixing The Last Decking Board

Fix the final composite decking board as normal but do not fix the metal clips to the outer groove. Pre-drill holes and screw through the outer groove of the decking board at an angle and into the joist with the screws provided. Start at 80mm approx then at every 300mm approx intervals.

​Where the decking board groove is not accessible pre-drill holes and screw through the face of the decking board avoiding the groove.

Why Choose Composite?

We are the UK's leading supplier of cost effective high quality composite decking, composite cladding and composite fencing for residential and commercial projects. Our products are made to the highest possible standard and go through rigorous and in depth testing phases before, during and after manufacture. Our forward thinking experienced team deliver efficiency, quality and the best customer care at all times providing customers a hassle free end to end solution when purchasing our products.

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If you have any questions regarding our Assured Composite® ranges then please give us a call on 0166 440 0140 or email us at

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