How much does decking cost in the UK?
A decking costs £60 to £220 in the UK, typically around £120 per m². Prices reviewed June 2026.
Decking is priced by the square metre, and the board material is the biggest lever: softwood at the budget end, composite at the top. Height and railings add to the frame work.
Price your decking
Adjust for your job and area to get a range. Nothing is sent anywhere.
Decking cost breakdown
What a decking typically costs, by the unit:
| What | Typical UK cost |
|---|---|
| Per m², supplied and fitted | £60 to £220 per m² |
| + Composite boards (not softwood) | add £50 to £120 per m² |
| + Raised deck with railings | add £600 to £2,000 |
| Typical 20 m² | £1,200 to £4,400 |
What's included in the price?
A typical decking price includes:
- Ground preparation and the supporting frame
- Joists, posts and fixings
- Decking boards supplied and laid
- Cutting, edging and clean-up
What changes the price?
The things that move a decking price most:
Deck area in square metres
Material: softwood is cheapest, hardwood and composite cost more
Height off the ground, steps and railings
Ground conditions and any groundwork
Does where you live change the cost?
London and the South East add around 10 to 20 percent.
Common questions
A typical 20 square metre deck is roughly £1,500 to £4,500, mostly depending on whether you choose softwood or composite boards and how raised the deck is.
Composite costs more upfront but does not need sanding, staining or sealing and lasts longer, so it can work out cheaper over time. Softwood is cheaper to install but needs regular maintenance.
These are independent guide prices based on typical UK jobs in 2026. Your actual cost depends on your property, spec, access and where you live. Always get at least three written quotes before committing.