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Composite VS Timber Decking

April 22, 2026

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What You Need To Know

If you're planning a new deck, the choice between composite and timber is one of the first big decisions you'll face. Both have their place, but understanding the differences in cost, appearance, longevity, and maintenance will help you make the right call for your project - and your budget.

Composite decking is an engineered product which can be made from a blend of wood fibres, recycled plastic or resins as well as other materials to ensure longevity and a realistic finish. It's designed to mimic the look of timber while offering resistance to moisture and rot.

Key Features Of Composite Decking:

  • Low maintenance - no sanding, staining, or treating required
  • Consistent appearance - uniform colour and texture across boards
  • Moisture resistant - less prone to warping in wet conditions
  • Made from recycled materials - often marketed as an eco-friendly option
  • Higher upfront cost - typically more expensive per square metre than timber

    • While composite decking suits certain applications, it's worth understanding the features and benefits compared to timber decking before committing to the cost.

    Timber decking is exactly what it sounds like - real, natural wood. Pressure-treated timber which brings character and warmth that will always be appealing, especially for those appreciate a wood grain and natural aesthetic.

    Key Features Of Timber Decking:

  • Natural aesthetic - genuine grain, warmth, and character in every board
  • Cost-effective - lower upfront cost, especially with pressure-treated softwood
  • Versatile - can be cut, shaped, stained, and adapted on site
  • Biodegradable and sustainable - especially when sourced responsibly
  • Repairable - individual boards can be replaced without replacing the whole deck
  • Can improve with age

    • The Real Cost Comparison

    One of the most common questions is that composite is better value because it requires less maintenance. Let's break that down honestly.

    Composite decking:     Carries a higher upfront material cost. While it reduces the need for annual treatment, it cannot be repaired easily - damaged boards often require full replacement, and the full deck typically needs replacing after 25-40 years. Perfect for a long-lasting approach with an unquestionably desirable aesthetic.

    A pay-in installments option is available if the up-front cost is a pain point. This is an investment in your outdoor space which will stand the test of time and be a talking point for years to come.

    Timber decking:     When properly treated and maintained, can last for a long time. Pressure-treated decking is among the most cost-effective options on the market, and with a simple annual clean and re-treat, it holds up exceptionally well in the UK climate.

    Maintenance: What's Actually Involved?

    Composite Decking Maintenance:

  • Occasional wash down with soapy water
  • Can develop mould or algae in shaded, damp areas - requires specific composite cleaners
  • Cannot be sanded or refinished if the surface fades or scratches


    • Timber Decking Maintenance:

  • Annual clean and re-application of decking oil or stain
  • Any surface damage can be sanded back and refinished
  • Pressure-treated timber has preservative built in from the point of manufacture

    • Environmental Considerations

    Sustainability is increasingly important to homeowners and contractors alike. Responsibly sourced timber is one of the most sustainable building materials available - it's renewable, biodegradable, and carbon-storing throughout its life.

    Composite decking, while often made from recycled content, is a plastic-based product. At the end of its life, composite decking can be difficult to recycle. Our Millboard products are a perfect example of sustainability meeting composite in a successful way. If you are unsure you can Request A Sample Here.

    If environmental impact matters to your project, sustainable timber is hard to beat. Check out our environmental policy for more information and FSC and PEFC certification.

    Our Environmental Policy
    We are FSC & PEFC certified for our timber related products, check our certification:
    For More Information

    Which Is Right for Your Project?

    There's no single right answer, but here's a quick guide:

    Choose Composite If:

  • You want a minimal maintenance solution, and you desire a long-term investment
  • You appreciate contemporary, modern aesthetics

    • Choose Timber If:

  • You want a natural, authentic finish adding real character to your outdoor space
  • You're working to a budget without compromising on quality
  • You want a product that can be cut, shaped, repaired, and adapted on site
  • Sustainability and responsible sourcing matter to your project

    • Ready to Start Your Decking Project?

    At PGR, we stock a range of high-quality timber products suitable for decking projects of all sizes - from pressure-treated boards to premium composite options & accessories, we have everything you need.