What Does Decking Cost in the UK in 2026?
Thinking about getting a deck put in? Whether you fancy classic timber or low-maintenance composite, the cost depends on the size of the area, the materials you choose, and how much prep work is needed. I fit decking across Leeds and Yorkshire, and these are the real prices you’ll be looking at in 2026.
The biggest decision is timber vs composite. Both have their place — I’ll break down the costs so you can make a proper informed choice.
Decking Cost Breakdown — 2026 UK Prices
| Item | Cost Range |
|---|---|
| Softwood timber decking (supply & fit) | £70–£90 per m² |
| Hardwood timber decking (supply & fit) | £90–£120 per m² |
| Composite decking (supply & fit) | £100–£150 per m² |
| Subframe & joists | Included in per m² price |
| Steps (per step) | £80–£150 |
| Balustrade / handrail (per linear metre) | £40–£80 |
| Ground clearance & levelling | £200–£500 (if needed) |
| Small deck (10 m²) — Timber | £700–£900 total |
| Medium deck (15 m²) — Timber | £1,050–£1,350 total |
| Medium deck (15 m²) — Composite | £1,500–£2,250 total |
| Large deck (25 m²) — Timber | £1,750–£2,250 total |
| Large deck (25 m²) — Composite | £2,500–£3,750 total |
Timber vs Composite — Which Should You Choose?
Timber is the traditional choice and costs less upfront. Softwood (pressure-treated pine) is the most affordable option. It looks great when freshly treated, but you’ll need to oil or stain it every year or two to keep it in shape. Expect 10–15 years from softwood, longer from hardwood like oak or iroko.
Composite boards are made from a mix of wood fibre and recycled plastic. They cost more upfront but need virtually no maintenance — no annual oiling, no sanding, no splinters. Most composite brands offer 20–25 year warranties. Over a 15-year period, composite often works out cheaper once you factor in maintenance costs.
What Affects the Price of Decking?
- Material choice: Composite costs 30–60% more than softwood timber upfront, but saves on long-term maintenance. Hardwood sits in between.
- Deck size and shape: Straightforward rectangular decks are the most cost-effective. L-shapes, curves, or multi-level designs take more time and materials.
- Ground preparation: If the ground is uneven, boggy, or covered in old paving, it needs clearing and levelling before we can build the subframe.
- Height and steps: Raised decks need a more substantial subframe and usually balustrades for safety. Steps add £80–£150 per step.
- Access: If materials have to come through the house or down a narrow side passage, it adds time to the job.
How Long Does Decking Take to Install?
A standard 15 m² deck on reasonably level ground takes 2–3 days. Smaller decks (under 10 m²) can sometimes be done in a day and a half. Larger or more complex builds — raised decks, multiple levels, or lots of steps — can take 4–5 days. I’ll always give you a clear timeline before we start.
Do I Need Planning Permission for Decking?
Usually not. Under permitted development, you can build decking without planning permission as long as it’s no more than 30 cm above ground level (measured from the highest point of the ground next to the deck). It also needs to cover less than 50% of your garden area, and shouldn’t extend beyond the front of the house facing a highway.
If you want a raised deck (over 30 cm), you’ll likely need to apply for planning permission through Leeds City Council. I’d always recommend checking before we start if there’s any doubt.
Frequently Asked Questions
Is composite decking slippery when wet?
Modern composite boards have textured, anti-slip surfaces that grip well even when wet. Early composite products had a reputation for being slippy, but the current generation is much improved. I only use boards with good slip ratings.
Can decking be laid over an old patio?
Sometimes, yes. If the patio is level and in reasonable condition, we can build the subframe directly on top. If the slabs are uneven or cracked, it’s usually better to lift them first. I’ll advise when I come to look.
How do I maintain timber decking?
Give it a good clean with a stiff brush and decking cleaner once a year, then apply a coat of decking oil or stain. This keeps the colour and protects the wood from moisture. Neglect it and the boards will go grey and start to split within a few years.
What colour options are there for composite decking?
Most composite ranges offer 6–10 colours, from natural wood tones (oak, teak, walnut) to contemporary greys and charcoal. The colour goes all the way through the board, so scratches don’t show a different colour underneath.
Will decking add value to my home?
A well-built deck can add kerb appeal and usable outdoor space, which buyers appreciate. It won’t transform your property value on its own, but it makes a garden more attractive and functional — especially in a competitive market like Leeds.
Get a Free Quote from Home Helpers Yorkshire
I’ll come and measure your garden, talk through timber vs composite, and give you a clear, no-obligation quote — usually within 24 hours of visiting.
Get a free quote from Home Helpers Yorkshire — call 07355 105389 or WhatsApp us.