Composite decking prices UK (2026 price list)
Key facts. Composite decking boards £25 for 3.6m and £34 for 4.8m including VAT, the same price in all eight colours, about £46 per square metre. Hollow reversible boards, 150mm by 25mm, hidden clips, ten-year warranty. Matching L-trim from £20, fascia £22.99, step edge from £47.99, end caps £1.49. Free delivery over £190, delivered in 2 to 4 working days. Free samples, £2.99 postage. Prices correct at 26 September 2026.
Boards
| Board | Price | Colours | Per m² |
|---|---|---|---|
| 3.6m composite decking board, 150 × 25mm | £25 | Ash, Silver, Grey, Black, Oak, Teak Brown, Red Brown, Chocolate | about £46 |
| 4.8m composite decking board, 150 × 25mm | £34 | All except Red Brown | about £46 |
Shop by colour: grey, anthracite and charcoal, black, brown and oak composite decking. Every colour is the same price, so the choice is about the house, not the budget.
Trims, fixings and finishing
| Item | Price | How much you need |
|---|---|---|
| L-trim, 3.6m / 4.8m | £20 / £24 | The visible edges of a ground-level deck |
| Fascia board, 3.6m | £22.99 | Where the frame shows, on raised decks |
| Step edge, 3.6m / 4.8m | £47.99 / £62 | One per step tread |
| End caps | £1.49 each | One per cut board end on show; Ash, Oak, Teak, Black, Grey, Chocolate |
| Hidden clips, 100 | £16.50 | One per board per joist; three packs for a 3.6m × 3m deck |
| Screws, 100 | £12 | One per clip |
Frame
| Item | Price | Use |
|---|---|---|
| Composite batten, 3m | £16.19 | Ground-level deck on a patio or slabs, at 350mm centres |
| Composite batten, 3.6m | £17.19 | As above; nine for a 3.6m × 3m deck |
| Recycled plastic rails and battens | £15 | Lifting sleepers and frames off the ground |
| Recycled plastic joist, 50 × 100mm | £44.95 | Rot-proof frame on soil, on pads at 350mm centres |
| Recycled plastic post, 80 × 80mm × 3m | £56.99 | Raised decks and sloping gardens |
| Recycled plastic post, 100 × 100mm × 3m | £77.99 | Heavier raised decks |
| Balustrade kit, 1.5m | £160 | Required on decks over 600mm high; grey, teak or black |
| Extra post kit | £40 | Corners and steps in a balustrade run |
What a deck costs in materials
| Deck | Boards | Frame | Clips and screws | Trims | Total, delivered |
|---|---|---|---|---|---|
| 3.6m × 3m on an existing patio (10.8m²) | 20 × 3.6m, £500 | 9 composite battens, £155 | 3 packs each, £86 | 2 × 3.6m L-trim, £40 | about £780 |
| 4.8m × 4m on a lawn (19.2m²) | 28 × 4.8m, £952 | Plastic joists and pads, £350 to £450 | 4 packs each, £114 | Fascia and L-trim, £130 | about £1,550 to £1,650 |
| 4.8m × 4m raised 500mm with a step and balustrade | 28 × 4.8m, £952 | Posts, joists and pads, £900 to £1,000 | 4 packs each, £114 | Fascia, step edge, 2 balustrade kits, £500 | about £2,500 to £2,600 |
All three are over the £190 free delivery threshold. Add £40 to £60 per square metre for a fitter on a patio deck, £70 to £110 where there is groundwork; the installation cost guide has labour rates by job, and the cost per square metre guide itemises each deck above.
Frequently asked questions
Is composite decking priced per board or per square metre?
Per board, including VAT: £25 for a 3.6m board and £34 for a 4.8m board, in every colour. Boards are 150mm wide, so with the 6mm clip gap that is about £46 per square metre of deck for the boards alone.
How much does composite decking cost per square metre installed?
Boards are about £46 per square metre. A complete deck with frame, clips, trims and fascia is £75 to £95 per square metre in materials, and a fitter adds £40 to £60 per square metre on a prepared base or £70 to £110 where there is groundwork. So £150 to £220 per square metre fitted, all in.
Are all colours the same price?
Yes. Ash, Silver, Grey, Black, Oak, Teak Brown, Red Brown and Chocolate are all £25 for 3.6m and £34 for 4.8m. Red Brown is made in 3.6m only.
Does the price include delivery?
Orders over £190 are delivered free by pallet, kerbside, in 2 to 4 working days. Under £190 delivery is £30. A 3.6m by 3m deck is well over the free delivery threshold.
What is the cheapest way to build a composite deck?
A ground-level deck on an existing patio: composite battens instead of a joist frame, 3.6m boards, hidden clips, and an L-trim on the visible edges. Materials for 3.6m by 3m come to about £780. Doing it yourself over a weekend saves £500 or more against a fitted price.
Send us the deck size and whether it is going on slabs, soil or posts, and we will list everything in one order. Order free samples first if you have not chosen the colour, or browse the full composite decking range.
