Timber vs Composite Decking: Understanding the Differences

Composite vs Timber Decking: Which Is Better for UK Gardens?

For most UK homeowners, composite decking is the better long-term choice. While timber decking has a lower upfront cost, composite decking offers greater durability, minimal maintenance, and better performance in wet UK conditions.

This guide compares timber and composite decking to help you choose the right option for your project.

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Composite vs Timber Decking: Quick Comparison

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Materials Used in Decking

Timber Decking

Timber decking is available in softwood and hardwood options such as Scandinavian Redwood, Spruce, and Larch. These timbers are pressure-treated for durability and can be stained to suit different garden styles.

Composite Decking

Composite decking is made from recycled plastics and wood fibres, creating a durable material designed for long-term outdoor use. Trex composite decking provides a consistent finish without the need for ongoing treatment.

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Cost Comparison: Timber vs Composite Decking

Timber decking typically costs between £20–£50 per m², making it the more affordable option upfront.

Composite decking, including Trex, usually costs £70–£110 per m², placing it within the premium category.

For a full breakdown of composite pricing, see our Trex decking cost guide.

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Cost Over Time: Which Is Better Value?

While timber decking has a lower initial cost, it requires regular maintenance including staining, sealing, and repairs. Over time, these costs can add up.

Composite decking requires minimal upkeep, making it a more cost-effective solution over its lifespan.

Find out more in our Is Trex decking worth it? guide.

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Durability and Maintenance

Composite decking is engineered to resist fading, staining, scratching and mould, making it ideal for UK weather conditions. Trex products also come with long warranties, offering added peace of mind.

Timber decking requires regular maintenance to maintain its appearance and structural integrity.

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Sustainability

Composite decking uses recycled materials, helping to reduce waste. Trex alone repurposes millions of plastic bags each year.

Timber decking can also be sustainably sourced, with Arbordeck ensuring all timber comes from responsibly managed forests.

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Which Option Is Right for You?

• Choose timber decking if: you want a lower upfront cost and traditional look
• Choose composite decking if: you want durability, low maintenance and long-term value

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