By the UK Pool Guide – Home Swimming Pools, Reviews & Advice Team · Updated May 2026 · Independent, reader-supported

Above Ground Pool Decking Ideas & Products UK – Transform Your Garden

An above ground pool is a relatively straightforward addition to any UK garden, but the decking around it makes the real difference. Proper decking keeps people safe, extends the life of your pool, and genuinely transforms how the space looks and functions. Whether you're working with a small 12ft pool or a larger 18ft model, the right surrounding surface matters far more than many people expect.

Why Decking Matters

The ground around an above ground pool takes a beating. Water splashes out constantly, feet are wet and slippery, and the chlorine and UV exposure degrade whatever surface you choose. A decent decking solution prevents injuries, stops water pooling and damaging your garden, and makes the whole setup feel intentional rather than temporary.

The right decking also extends pool life—proper water drainage around the pool's base prevents rot and rust on metal frames, and it keeps the surrounding soil stable so the pool doesn't settle unevenly.

Timber Decking

Timber remains the most popular choice for UK pool decking, and for good reason. It looks natural, feels pleasant underfoot when dry, and fits into most garden designs without looking industrial.

Pressure-treated softwood is the budget option, typically costing £30–£50 per square metre installed. Standard pressure-treated timber (usually pine or spruce) comes pre-treated to resist rot for around 15 years. The catch: it requires regular maintenance. Plan on sanding and resealing every 2–3 years, which adds up. After 10–12 years, rot often becomes noticeable despite treatment, especially in wet northern climates.

Hardwood options like spotted gum or cumaru cost £80–£150 per square metre and naturally resist rot and insect damage without chemical treatment. They're denser, more durable, and typically last 20+ years with minimal intervention beyond occasional oiling. The investment pays off if you're planning to keep the pool long-term, though initial costs are substantially higher.

Timber decking does get slippery when wet—essential to know if you have children or older family members using the pool. Adding anti-slip tape or textured coatings helps significantly.

Composite Decking

Composite boards (wood fibres mixed with plastic polymer) are increasingly popular in the UK, and they've genuinely improved over the past decade.

Cost: £60–£110 per square metre, positioned between budget softwood and hardwood. Installation labour costs are similar to timber.

Durability: Most composites last 20–25 years with minimal degradation. They don't rot, don't need sealing, and resist most UK weather conditions well. Fading is the main issue—colours do dull slightly over 5–10 years, but that's aesthetic rather than structural.

Maintenance: This is where composites shine. No sanding, no sealing, no restaining required. A hose down once or twice a year is enough. For people who've spent years maintaining timber, this difference is noticeable.

Trade-offs: They're warmer underfoot than timber in direct sun (can be uncomfortable on bare feet during hot spells), they're less biodegradable than timber, and some cheaper composites can feel plasticky. Mid-range and premium composites (brands like Trex, Cladco) perform far better than budget options.

Composite typically offers better slip resistance than untreated timber, which is a practical advantage around wet areas.

Other Options

Concrete: Practical and cheap (£20–£35 per square metre), but quickly becomes slippery when wet. Staining or stamping adds character but requires maintenance. Cracking in freeze-thaw cycles is common across northern UK regions.

Porcelain tiles: Durable and attractive (£40–£70 per square metre installed), but cracking under the weight of above ground pools is a known issue. Not genuinely recommended for pool surrounds.

Permeable paving or gravel: Water drains immediately, costs vary widely, but requires regular top-ups and maintenance to stay tidy. Fine for informal setups.

Safety Rails and Barriers

UK regulations don't legally require barriers around above ground pools if they're under 600mm in height (most are 1.2–1.5 metres), but that doesn't reflect the practical reality. If you have children nearby, a removable safety ladder and a simple rail system are essential.

Aluminium pool rails (usually £150–£400 depending on pool size) clamp onto the pool's rim without permanent installation. They're removable, which appeals to renters, but cheaper versions can wobble slightly.

Decking-mounted rails bolted to your decking structure are more solid but require planning during decking installation. These cost £300–£700 and look more integrated with your garden design.

Installation Considerations

Proper decking needs a level, well-draining base. Most UK gardens slope slightly, so you may need to level the area and add a gravel foundation layer. Poor drainage creates the damp conditions where composite staining and mould growth happen—worth getting right at the start.

Decking should extend at least 1 metre from the pool's edge (further if space allows) to give comfortable movement and help water drain away from the pool surround.

Maintenance Reality Check

Timber genuinely requires commitment. Budget for sealing costs every 2–3 years (around £200–£400 for a typical pool surround), plus your own labour or contractor costs. Over 20 years, that adds significant expense on top of the initial installation.

Composite requires almost nothing except occasional cleaning—no staining, no sealing, no structural repairs. For most people, this lower maintenance is worth the higher upfront cost.

Timber ages visually in a way many prefer—silvering and greying creates character. Composite stays more uniform over time, which some find attractive and others find dated after 10 years.

Conclusion

For UK pool owners, timber works well if you're willing to maintain it and enjoy the aesthetic ageing process. Composite makes sense if you want something genuinely low-maintenance and long-lasting. Concrete is practical for tight budgets but requires careful anti-slip treatment. Whatever you choose, proper installation with good drainage underneath is non-negotiable.