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FAQ - Frequently Asked Questions - Plastic and Composite Decking.


What is Composite Decking?

 What is Plastic Decking?

 Is Composite Decking Maintenance Free?

Is joist Spacing the same for Composite Deck boards?



Answers to Decking Questions

Composite Decking WPC is a newish form of deckboard that has evolved over the last few years into a stable product for making decks. It is manufactured from a mixture of timber waste and recycled plastics in one form or another. WPC stands for Wood Polymer Composite - NOT Wood Plastic Decking. You can call it either, for plastics are basically polymers are basically plastics! Polymer sounds more scientific, so it is a term used by professionals.
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Plastic Decking is normally made from Vinyl and is not a composite, though just to confuse things, you can get a composite that uses vinyl instead of the plastics that are used in normal composites. Vinyl composites are usually hollow boards, and have hard surfaces. Vinyl is a superb material - being more or less totally resistant to all environmental challenges, such as ultra violet rays, that tend to degrade or at least fade most other exterior surfaces. Some companies that make window and door frames uPVC are now gearing themselves up to produce uPVC (Vinyl Decking.


Maintenance! Is anything outside maintenance free? Do you have to wash your car or windows from time to time. Rain certainly does not do the job for you. Other than routine washing, there are other things which can be found here.


 Joist Spacing is different for composite and plastic deckboards. Normally a timber deck can have joists at around 500-600mm centres (15in - 18in) Not so for composite or plastic. Generally, around 320mm (13in) seems to be about right depending on the type of board used. See the manufacturer's spec sheet for precise detail.



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