Composite Deck

Decking installation


WPC (Bamboo Plastic Composite) is a new type of material made by mixed bamboo/wood powder with HDPE (High Density Polyethylene) and other chemical additives. The material is extruded from the unique high pressure and temperature machine from specially designed mould. WPC decking is a safe, environmentally responsible alternative new material which doesn’t need painting and glue for its special manufacturing technique and characters. It is eco-friendly product. The main material bamboo/wood powder is scrap from furnish factories, and another material is recycling plastic. Containing of natural fiber, the WPC product not only has high degree of anti-UV and weather resistant properties, but also easy to machine during production and usage. It has the character of highly resistant to moisture and termites, no rotten, no cracking, consistent color stability, so it can be wildly used in the outdoor.

Important points for installation
Slight color and surface differences may occur due to slight differences in raw materials or surface treatment. This ensures your decking will have a natural appearance

It is advisable to place the terrace sections in the required installation site for 72 hours before you start install to acclimatize them. Don’t install the terrace sections if the temperature is blow 0

We advise you to use original accessories and parts from BAMBOO PLASTIC COMPOSITE OUTDOOR DECK, must be a space of at least 25mm between the ground and the substructure. In case of insufficient ventilation any guarantee will be invalidated. Direct Contact between the terrace section and the grass or ground must be avoided at all costs.

Variations in temperature and moisture uptake will result in expansion of the sufficient distance expansion between the terrace sections, all around the terrace and by walls, fences ad trees.

A strong and compacted base such as concrete , gravel ,grit or something similar is necessary

Before you start ensure there is a level base and remove all weeds. To prevent weeds growing, we advise laying root-stop fabric under the structure. Make sure the ground base is clean, dry, stable, solid and smooth – a slope of 2% will provide the correct water drainage.

WPC product is not suitable for closed and wet places without air ventilation and/or environment with significant difference temperature change (such as sauna room).

Tools recommended:

Electric drill + Screwdriver + Impact drill + Impact drill + Hammer

The substructure

We advise installing the terrace sections on a structure of BAMBOO PLASTIC COMPOSITE OUTDOOR DECK support joists

Points for attention:

Ensure good drainage. For this reason lay he substructure with a slight gradient of 1% to 1.5% away from the house, laid lengthwise.

Keep the joists at least 30mm from the walls or other obstacles to allow for expansion of the WPC products


For the hollow deck 23 to 25cm thickness, please laid the support joists at maximum 40cm between centers

PS: For a good foundation you can lay concrete below the joists

On normal condition, you can lay the support joists floating on the base to allow for movement of the material by not fixing the joists to the base.

On special occasion, if the terrace is not so big and you don’t want it movable, please fix the joist to the base by keels filter or directly fixing the joist to the base by the use of the expansion screws. It is recommended to buy the expansion screws from the local market.

composite decking installation

Following are steps:

Please note that it is an absolute MUST that the decking surface is mounted flat and no water can collect on the surface or in the chambers. If water collects in the chambers for a longer period the boards start cuping and waving because of the moisture expansion., so please leave the surface inclined 1,5-2% in board direction so that there is no danger of  water collection.

OR you can use the plastic piece under the keel to make a slope

composite decking installation


You can finish the crosscut ends of the terrace sections neatly with the I shape corner plank; in that case you must drill holes in the underside of the terrace sections. If you do not drill these holes, then water or moisture cannot drain away and the guarantee for water damage is invalidated. The deck or joist must be always be at right angles to the base.

L shape corner cover is also available for an attractive finish.

Fix the L shape corner cover against the wall and not to the terrace sections to allow for movement of the BPC. To determine the right positions on the wall proceed as follows:

 composite decking installation

Note: It is a must that there is 1 keel line for every board end.

1 keel for 2 boards is wrong and gives no hold to the boards, so the force gets too high for the installation and results that the boards tend to bend upwards. The end of the board cannot fully rest on 1 complete keel, but only on not even half a keel width.The reaction force if 2 clips are used is much lower  Furthermore if the the clips has to hold 2 boards  it can get loose more easilly.

If the crosscut distance of the terrace is 800cm and the boards are 400cm long, so there will be a joint of two boards horizontally. Please remember to lay one joist under the end of each deck board, in one word: make sure that the boards extend more than 50mm over the support joists.

The WPC products’ expansion rate is around 0.3% to 0.5% depends on different weather condition in different places, based on this expansion rate, there must be a gap always between two WPC products, following there is some examples:

The distance of at least 30mm from walls or other obstacles to allow for expansion of the WPC products is necessary during the installation

At least 10mm between the cross cut ends is necessary

If you are using terrace sections with a length of 400cm, the distance between the crosscut ends must be at least 15mm based on calculation.

BAMBOO PLASTIC COMPOSITE OUTDOOR DECK offers starting clip / starters for the first deck board during installation

For this, firstly fix the entire starting clip on the joist on line, and then push the first terrace deck board to the starting clip to fix




green deck composite decking

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Composite decking tile SALE price:
£3.2 per Tile from 501 pieces
Composite garden decking SALE price:
23,1 £ / sqm 

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