Composite Decking
Composite decking is a modern, low-maintenance alternative to traditional timber decking. Made from a blend of recycled plastic and real wood fibres (WPC), it gives you the natural look of wood without the ongoing upkeep.
Built to handle the Scottish climate, composite decking stays looking great year after year - no staining, no rotting, no hassle!
Why choose composite decking?
- 10-year guarantee - made to stand the test of time.
- Low maintenance - no painting, staining or sealing required.
- Weather-resistant - won’t rot, warp or splinter over time.
- Not slippery - absorbs less water, reducing slippery algae and mould.
- Easy installation - straightforward, DIY-friendly installation.
When you buy from Stewart Timber, you’re choosing a trusted local supplier. We offer fast delivery (free within 30 miles of Cumbernauld) and friendly expert advice to help you get everything you need for your project.
FSC approved timber
Our timber is responsibly sourced, giving you peace of mind about your deck's origins.
Pressure-treated wood
Our timber is treated to ward off bugs and protect it from the elements, extending its life.
Fast delivery
Delivery within 5 working days in Central Scotland so you can start your project asap.
Showing all 6 results
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Habitat+ Composite Decking Boards 22mm x 135mm (EOL)
- Habitat Composite Deck Board. 3.6m long 135mm x 22mm
- END OF LINE PRODUCT
Select options This product has multiple variants. The options may be chosen on the product pageFrom £25.00 ex VAT
£30.00 inc VAT
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Habitat+ Composite Decking Skirt Trim (EOL)
- END OF LINE PRODUCT
- 2.4m 100mm x 15mm skirt trim
Select options This product has multiple variants. The options may be chosen on the product pageFrom £10.00 ex VAT
£12.00 inc VAT
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NewGen Composite Decking Boards 147mm x 22mm 3.6m
- NewGen Composite Deck Board - 3.6m long 147mm x 22mm
- All our composite decking products come with a 10-year guarantee.
Select options This product has multiple variants. The options may be chosen on the product pageFrom £13.47 ex VAT
Price range: £16.16 through £16.49 inc VAT
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NewGen Composite Decking Trim 3.6m
- NewGen Composite Deck Trim 3.6m 47x47mm
Select options This product has multiple variants. The options may be chosen on the product pageFrom £12.49 ex VAT
£14.99 inc VAT
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Starter Clips for NewGen Composite Decking (20no.)
- Pack of 10
- Stainless steel
Add to basket£12.49 ex VAT
£14.99 inc VAT
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Secret Fixings for NewGen Composite Decking (100no.)
- T-Fixings
- Box of 100
Add to basket£41.67 ex VAT
£50.00 inc VAT
Decking customer reviews
Composite Decking - FAQs
Does composite decking fade over time?
Composite decking can fade over time, but good quality boards will only be minimally affected. The change usually happens in the first 3-6 months, a process called “weathering”. Manufacturers deliberately make the boards darker to start with so the final “weathered” colour is not faint.
Can I install composite decking myself?
Yes, you can install composite decking yourself! It is fairly straightforward, even if you’re a newbie to DIY. With a proper installation guide, the right tools, and the right concentration, you can install more easily than timber decking, with fastening clips.
Is composite decking slippery when wet?
Composite decking is designed to be slip-resistant, even when it’s wet. It absorbs less water than timber decking, which makes it less prone to growing slippery algae and mould. You should keep on top of cleaning 1-2 times a year to ensure it is not slippery underfoot.
Can you put composite decking directly on concrete?
Yes, you can build a composite deck directly on concrete. You should first build a subframe with pressure-treated timber joists to create a level foundation and to ensure proper drainage away from your house.
Can you power wash composite decking?
You can power wash decking but you should be cautious. You should only use a low-pressure setting (1,500-2,500 psi) with a wide fan-tip nozzle, kept 200-300mm from the deck surface to avoid scratches / cuts to the material. It is better to simply hose down with warm, soapy water and brush with a soft brush.
Does composite decking need maintenance?
Composite decking requires light maintenance. It is much lower maintenance than timber decking. It needs cleaned one or two times a year with warm, soapy water and a soft brush. To prevent stains and mould, debris should be swept off regularly and any food / drink spills should be wiped off straight away.
Is composite decking better than timber?
It depends on what matters most to you!
- Aesthetics – composite has a more modern, uniform finish whereas timber decking is best if you prefer a more natural wood grain.
- Cost – composite is more expensive upfront, but has lower maintenance costs than timber.
- Maintenance – composite requires light cleaning but no painting/staining. Timber needs stained/sealed/sanded every 1-4 years.
- Longevity – composite lasts longer than timber (25-30 years vs 15-25 years).
Slip prevention – composite absorbs less watery so is less slippery than poorly maintained timber decking.
How long does composite decking last?
Composite decking is a great long-term investment. It typically lasts 25 to 30 years, and with proper installation and care, it can easily last beyond this.
