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DuoGroove WPC Decking

The DuoGroove has a square honeycomb structure meaning it is strong yet lightweight benefiting from two groove patterns one on either side of the board giving you the choice of groove design.

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DuoGroove Products

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Composite Skirting Board 12x70mm x 2.2m

composite skirting board

Measuring 12x70mm and available in three colours to match the deck boards, teak, grey and charcoal. Pre-drill the boards and countersink then use one of the stainless screws to fix the boards to the joist.


Composite Corner Trim 50x40mm x 2.2m

composite corner trim

Measuring 50x40mm and available in three colours to match the deck boards, teak, grey and charcoal. Perfect for steps and edges finishing the deck neatly. Pre-drill the boards and countersink then use one of the stainless screws to fix the boards to the joist.


Plastic Clip & Screw for DuoDeck Boards


Plastic Tee Clip and Screws and designed to complement the decking perfectly, they are laid in-between the boards, not only giving the perfect gap but also a hidden fixing.


Metal Starter Clip for Duodeck

metal starter clip for DuoDeck composite decking

Starter Clips are fixed down on the edge of the first joist and then the deck board is pushed up tight, allowing any facia’s boards to sit flush against the first deck board.


DuoJoist – 4m 100x50mm Box Section Joist


Duojoist has been designed with a 15mm thick outer wall, it allows for a strong fixing of the deck boards on top, finishing 100x50mm it is a robust and sturdy joist perfect for any composite deck. We suggest a maximum of 350mm centres between joists.


Newel Post Cap

X-Section joist for composite decking

The X-section joist is a X section moulded from a 40x25mm block and designed to be laid directly onto a concrete pad, patio or block paving. It is non-load bearing. However gives a fixing point for all the clips and screws.


Timber Joists

timber joists

If you prefer you can still use a timber joist for fitting composite joists, we still recommend a 400mm centre. We can supply either a 150mm or 100mm joist. These are a graded timber joist ex.50mm thick. All joists supplied are pressure treated.


Adjustable Joist Supports

Adjustable joist supports for composite decking

Adjustable Joist Supports, are designed to sit on a hard standing, they are screwed and un-screwed to raise the leg to give a perfectly level base of joists to sit into. Best used where uneven ground makes it hard to get a level area.


Corner Bracket for Joists

composte decking corner bracket

Designed and made for us at DuoDeck this specially produced corner bracket gives the perfect fixing for where composite joists have to be fixed as a corner. It allows for joists to be fixed together with a strong, secure fixing with a perfect 90o angle.


Joist Hanger

Adjustable joist supports for composite decking

Allowing for a 50mm joist this mini joist hanger suits our Duojoist or timber joists perfectly. Giving a strong and reliable fixing. Made from an electro galvanised metal for a long life. You will need one where each joist meets another.


Square Driver Drill Bit

Drill bit for DuoDeck composite decking

Square driver drill bit, perfect for use with our square drive clip and screws.


Bolt for Joist Brackets

DuoDeck composite decking bolt

This M8 Bolt is designed for use with the corner brackets, when fixing the composite joist together.


Countersink Drill Bit

countersink drill bit for DuoDeck composite decking

This 16mm Countersink Drill Bit compliments the m8x60 countersink bolts.


Contact Us

For any composite decking enquiries, please get in touch today and speak with one of our helpful professionals