How long does composite decking last?
Quality composite decking lasts 25–30 years with minimal maintenance. Most brands offer 20–25 year warranties against rot, fading, and structural defects.
How Much Does Composite Decking Cost in 2026?
Composite decking offers a low-maintenance, long-lasting alternative to timber. It resists rot, fading, and splinters. In 2026, UK prices range from £80 to £200 per square metre installed.
Typical UK range:£2,000 – £8,000
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Budget£2,000 – £3,000
Hollow-core composite boards on a treated timber frame. 15m² deck area.
Mid-Range£3,000 – £5,500
Solid-core capped composite, hidden fixings, aluminium subframe. 20m².
Premium£5,500 – £8,000+
Premium capped boards, integrated lighting, multi-level design, balustrades. 25m²+.
Factors That Affect the Cost
- Deck area and shape
- Board type (hollow-core, solid-core, capped)
- Subframe (timber or aluminium)
- Steps, rails, and balustrades
- Ground preparation and drainage
Regional Price Variations
Composite decking installation is 10–15% more expensive in London and the South East. Material costs are similar across the UK.
Frequently Asked Questions
Is composite decking slippery?
Modern composite boards have textured surfaces for grip. They are generally less slippery than smooth timber when wet, though moss can build up in shaded areas.
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