← News VIGO HOME / JOURNAL

VIGO HOME / NEWS

How Much Does Composite Decking Cost in the UK? 2026 Price Guide

September 15, 2026

How much does composite decking cost in the UK in 2026?

The short answer is that composite decking prices vary significantly depending on the board, subframe, deck size, site conditions and whether you install it yourself or pay a professional.

For the decking boards alone, current UK prices can start at around £30 per square metre for value hollow WPC products and rise considerably for premium capped or specialist boards. A complete professionally installed deck can cost much more once the subframe, fixings, edging, groundwork and labour are included.

This guide breaks down the cost of composite decking in the UK, including board prices per square metre, typical project sizes, subframe costs, fixings, delivery, DIY vs professional installation and the factors that can make a deck more expensive.

Composite Decking Cost UK 2026: Quick Answer

Cost Element	Typical 2026 UK Range	What It Includes
Composite decking boards only	Approx. £30–£110+ per m²	Decking boards only
Value hollow WPC boards	Approx. £30–£50 per m²	Entry-level hollow composite boards
Mid-range / capped composite	Approx. £40–£80+ per m²	Higher-specification boards and capped finishes
Complete fitted composite deck	Approx. £80–£230+ per m²	Boards, frame and installation; specification varies

These figures are broad UK market planning ranges rather than fixed quotations. A simple low-level rectangular deck can cost considerably less than a raised deck with steps, balustrades and extensive groundwork.

How Much Do Composite Decking Boards Cost Per Square Metre?

Calculating the cost per square metre is the easiest way to compare composite decking products with different board widths and lengths.

The basic calculation is:

Board price ÷ nominal board face area = approximate board cost per m².

For example, a 3m board that is 140mm wide has a nominal board face area of approximately 0.42m²:

3m × 0.14m = 0.42m².

If that board costs £13.50:

£13.50 ÷ 0.42 = approximately £32.14 per m².

This is a useful comparison figure, but it is not the final installed cost. You still need to allow for gaps, cuts, wastage, joists, clips, trims, delivery and potentially labour.

Current Vigo Home Composite Decking Prices

At the time of writing in September 2026, Vigo Home stocks 3m WPC decking boards across several price points, including selected promotional boards at £13.50 each.

Example Board	Size	Current Board Price	Approx. Nominal Board Cost per m²
Selected B Series 3D WPC	140mm × 3m	£13.50	Approx. £32.14/m²
Selected 150mm WPC board	150mm × 3m	£13.50	Approx. £30.00/m²
Round hollow WPC	140mm × 3m	£15.50	Approx. £36.90/m²
Single-sided extruded WPC	140mm × 3m	£16.50	Approx. £39.29/m²
Selected 148mm WPC board	148mm × 3m	£18.50	Approx. £41.67/m²

Prices above are examples based on Vigo Home prices available at the time of publication. Promotions, stock and prices can change. The £/m² figures use nominal board width for comparison and do not include installation gaps, wastage, subframe materials, fixings or trims.

For current live prices, see the Vigo Home composite decking collection.

How Much Composite Decking Do I Need?

Do not simply measure the garden and buy exactly the same square metre quantity of decking.

You need to consider:

the actual deck dimensions;
board width;
board length;
installation gaps;
board direction;
position of joints;
cuts around posts or walls;
stairs and perimeter details;
wastage.

A simple rectangular deck normally creates less waste than a diagonal layout or a deck containing many corners.

It is common to allow additional material for cuts and wastage, but the correct allowance should be based on the actual deck plan rather than automatically adding the same percentage to every project.

Example Composite Decking Board Budgets

Using approximately £30–£42 per m² as a rough boards-only planning range for several current Vigo Home products, the visible decking boards for common garden sizes could look approximately like this:

Deck Size	Approx. Boards-Only Budget	Approx. With 10% Planning Allowance
10m²	£300–£420	£330–£462
15m²	£450–£630	£495–£693
20m²	£600–£840	£660–£924
25m²	£750–£1,050	£825–£1,155
30m²	£900–£1,260	£990–£1,386

These examples are for rough budgeting only. The exact number of boards should always be calculated from the dimensions of the selected product and the deck layout.

What Does a 20m² Composite Deck Cost?

A 20m² deck is a useful example because it is large enough for a typical garden seating or entertaining area without being an unusually large project.

The decking boards might cost roughly £600–£840 using several current value-to-mid-range Vigo board prices as a planning reference.

However, the complete project also needs to account for:

decking subframe;
supports or foundations;
starter clips;
hidden clips;
screws;
fascia or edge trims;
delivery;
wastage;
labour if professionally installed.

A £700 decking-board order therefore does not mean the complete finished deck will cost £700.

What Costs More: The Decking Boards or the Subframe?

Homeowners often focus on the visible board price, but the subframe can represent a significant proportion of the project budget.

The cost depends on the construction method and may include:

treated structural timber;
composite joists;
recycled-plastic bearers;
aluminium subframe systems;
support pads;
concrete foundations;
posts;
additional blocking;
ground preparation.

Vigo Home currently supplies a 3m composite decking batten/joist, allowing customers to build the supporting materials into the same project budget.

Composite Decking Fixing Costs

Grooved composite decking normally uses a fixing system rather than simply being screwed through the top like conventional timber boards.

Typical components include:

starter clips;
intermediate hidden clips;
stainless or corrosion-resistant screws;
additional fixing components at board joints;
special perimeter fixings where required.

Individually these components may seem inexpensive, but a large deck can use hundreds of clips.

Include them in your budget from the beginning rather than treating fixings as an afterthought.

See Vigo Home's decking screws and fixings for current options.

Composite Decking Edge and Trim Costs

A finished deck usually needs more than standard decking boards.

The perimeter may require:

fascia boards;
L-trims;
bullnose edging boards;
steps;
end caps;
additional perimeter joists.

Premium bullnose boards can cost considerably more per board than standard deck boards because they are specialist finishing products.

For example, Vigo Home currently stocks 3m WPC bullnose edging boards at £35 each in several finishes.

See our decking joists and finishing trims when calculating the complete project.

How Much Does Professional Composite Decking Installation Cost?

Professional installation varies much more than the price of the decking boards themselves.

Current UK cost guides show very broad supplied-and-fitted composite decking ranges, often from around £80 per m² at the lower end to £200–£230+ per m² for more expensive projects.

The variation is understandable because two 20m² decks can require completely different amounts of work.

A Lower-Cost Installation May Have:

level ground;
easy garden access;
a low deck height;
a simple rectangular shape;
few cuts;
no balustrades;
no steps;
a straightforward subframe.

A More Expensive Installation May Have:

significant excavation;
sloping or unstable ground;
a raised structure;
steps;
balustrades;
multiple levels;
difficult access;
complex board patterns;
large amounts of trimming;
existing decking that needs removal.

If you would rather have the deck professionally fitted, visit Vigo Home's Find an Installer page.

DIY Composite Decking vs Professional Installation Cost

DIY installation can remove a large proportion of the labour cost, but only if you have the tools and skills to construct the deck correctly.

Cost	DIY Installation	Professional Installation
Decking boards	Required	Required
Subframe materials	Required	Required
Clips and fixings	Required	Required
Tools	Buy, hire or already own	Normally supplied by installer
Labour	Your own time	Paid labour
Installation responsibility	You	Installer

A simple low-level garden deck can be a realistic DIY project for a competent homeowner.

Read our DIY composite decking installation guide before deciding whether the labour saving is worth taking the project on yourself.

For the full construction sequence, see how to install composite decking step by step.

What Affects Composite Decking Cost?

1. Board Construction

Round hollow, square hollow, solid and other profiles use different amounts of material and have different manufacturing requirements.

Hollow boards are often among the more affordable options, although the internal shape alone does not determine board quality.

See our square vs round hollow composite decking guide.

2. Capped vs Uncapped Composite

Capped or co-extruded boards include an additional engineered surface layer and can therefore cost more than basic uncapped WPC products.

The extra cost may provide improved resistance to staining, moisture and colour change depending on the product.

3. Board Width

Comparing board prices without checking width can be misleading.

A £17 wide board may cover more area than a £15 narrower board, so comparing approximate cost per square metre is more meaningful than comparing board price alone.

4. Board Length

Longer boards can reduce joints in certain layouts but may also affect transport, handling and wastage.

5. Colour and Finish

Deep embossed, capped, multi-tonal or specialist finishes can cost more than simpler profiles.

If appearance is important, read our guide to composite decking colours.

6. Subframe Specification

A ground-level deck over a suitable base may need a simpler structure than a raised deck requiring posts, foundations and additional structural support.

7. Garden Access

Difficult access can increase professional labour costs, particularly where materials need to be carried through a property or over long distances.

8. Steps and Multiple Levels

Steps require additional framing, cutting and finishing materials.

9. Balustrades

A raised deck that needs guarding or balustrades can be considerably more expensive than a simple ground-level platform.

10. Existing Deck Removal

If old timber decking needs to be dismantled and disposed of, include labour and waste costs before calculating the new deck.

Does Composite Decking Cost More Than Timber?

Entry-level pressure-treated softwood timber is often cheaper than composite decking at the initial purchase stage.

However, purchase price is not the only difference.

Composite decking generally avoids the routine decorative sanding, staining and oiling associated with maintaining the appearance of many timber decks.

Timber remains an excellent material when correctly specified and maintained, so the decision should not simply be based on which product costs less on day one.

Read our full composite decking vs timber cost and maintenance comparison.

Is Cheap Composite Decking Worth Buying?

A low board price does not automatically mean poor quality, just as a high price does not automatically guarantee the best board for your project.

Before buying inexpensive composite decking, check:

board dimensions;
wall thickness;
hollow or solid construction;
recommended joist spacing;
surface finish;
warranty;
fixing system;
stock availability;
technical installation guidance.

Clearance and promotional stock can offer excellent value where the product specification suits the project and enough matching boards are available to complete the deck.

Should You Buy Extra Composite Decking?

Ordering some additional material is sensible because cuts and wastage are inevitable.

Keeping one or two spare matching boards after installation can also be useful in case a board is damaged later.

This can be especially valuable where colours or ranges may change over time.

The amount of extra material required depends on the layout rather than one universal percentage.

Composite Decking Delivery Costs

Decking boards are long and bulky, so delivery can have a noticeable impact on project cost.

Always check delivery charges before comparing two suppliers purely on board price.

At the time of writing in September 2026, Vigo Home's current offers include:

minimum delivery order of £350;
free delivery within 60 miles of the Desborough warehouse on qualifying orders;
free national delivery on qualifying orders of £1,000 or more;
collection from Desborough, Northamptonshire.

Delivery promotions and thresholds can change, so check the current terms before ordering.

Can You Save Money by Collecting Composite Decking?

If you are close enough to the supplier and have a suitable vehicle, collection can remove delivery costs and may make smaller projects more economical.

Remember that 3m decking boards require suitable transport and must be secured safely.

Vigo Home holds composite decking stock at its warehouse in Desborough, Northamptonshire.

How to Reduce the Cost of Composite Decking

Choose a Deck Size That Works With the Board Length

Designing around standard board dimensions can reduce cuts and wasted offcuts.

Keep the Shape Simple

A rectangular deck generally requires less labour and creates less waste than complicated curves, diagonals and multiple levels.

Compare Cost per m², Not Only Price per Board

Board width matters. The cheapest individual board is not necessarily the cheapest way to cover the deck.

Check Clearance and Promotional Stock

If you are flexible on colour, special-offer products can significantly reduce material cost.

DIY Where Appropriate

A competent DIY installer can save labour costs on simple projects.

Do Not Save Money by Increasing Joist Spacing

Using fewer joists than the product specification requires is not a sensible saving. Incorrect support can cause board movement and compromise the installation.

Plan the Edge Finish Before Ordering

Decide whether you need fascia, L-trims or bullnose boards so that finishing costs are included from the start.

What Is the Cheapest Type of Composite Decking?

Hollow uncapped WPC boards are commonly among the lowest-priced full-size composite decking products.

They use less material than solid boards and can provide a practical solution for standard residential garden decks.

However, the cheapest profile is not automatically suitable for every project. Higher loads, specialist applications or particular appearance requirements may justify a different board construction.

Is Premium Composite Decking Worth the Extra Cost?

Premium boards can justify a higher price where the additional specification is useful to the project.

Potential differences include:

protective capped surfaces;
more advanced colour variation;
deeper woodgrain embossing;
different board construction;
improved stain resistance;
different warranty terms.

Do not pay more simply because a product is labelled premium. Compare the technical specification and decide whether the additional features matter to your garden.

How Much Does Composite Decking Cost to Maintain?

Routine composite decking maintenance is generally inexpensive.

Most WPC decking does not need regular decking oil, wood stain or paint.

Typical maintenance involves:

sweeping;
water;
mild compatible cleaning products;
occasional algae treatment where required;
periodic inspection of the decking and subframe.

Read our composite decking cleaning and maintenance guide for full care advice.

Frequently Asked Questions

How much is composite decking per square metre in the UK?

In 2026, UK composite decking boards can broadly range from around £30 per m² at the value end to more than £100 per m² for premium products. The exact cost depends on board width, profile, construction, finish and supplier.

How much does it cost to install composite decking?

Complete professional installation costs vary significantly. Current UK guides show broad ranges from around £80 per m² to more than £200 per m² depending on the decking, subframe, site conditions, deck height and complexity.

How much does a 20m² composite deck cost?

Using several current Vigo Home board prices as a rough example, the visible decking boards alone for 20m² may be approximately £600–£840 before wastage. The subframe, clips, trims, delivery and labour must then be added.

Is composite decking cheaper than timber?

Basic pressure-treated softwood is normally cheaper at the initial material-purchase stage. Composite can cost more upfront but generally requires less ongoing decorative treatment such as staining and oiling.

Why is composite decking expensive?

Composite decking is an engineered exterior product. Price differences can reflect material formulation, board construction, protective capping, surface finish, dimensions, warranties and manufacturing complexity.

Is hollow composite decking cheaper?

Hollow boards are often less expensive than solid boards because they use less material, although actual prices vary by profile and manufacturer.

How many composite decking boards do I need per square metre?

This depends on board width and the specified installation gap. Calculate the deck layout using the exact dimensions of the board rather than relying on a universal boards-per-m² figure.

Do composite decking prices include joists and fixings?

Usually not when a product is advertised as an individual decking-board price. Check whether quotations include the subframe, clips, screws, trims and delivery.

Does composite decking need a subframe?

Yes. Standard composite decking boards require a suitable supporting structure. The subframe specification depends on the board, site and deck design.

Can I install composite decking myself to save money?

Yes, a competent DIY installer may save professional labour costs on a simple low-level project. The saving is only worthwhile if the subframe, joist spacing, drainage and board installation are completed correctly.

Vigo Home Composite Decking Prices

Vigo Home stocks WPC composite decking directly from our warehouse in Desborough, Northamptonshire, with boards across several profiles, colours and price levels.

Current options include:

value hollow WPC decking;
round hollow decking;
square hollow decking;
3D woodgrain boards;
single-sided extruded boards;
different grey, black, teak, coffee and natural wood-effect colours.

Because prices and promotions change, the most accurate way to calculate your project is to choose the board first and work from its actual dimensions and current price.

You can:

Final Verdict: How Much Should You Budget for Composite Decking?

For boards alone, a realistic UK planning range in 2026 starts at roughly £30 per m² for value composite decking and can exceed £100 per m² for premium products.

The finished deck will cost more because the project also needs a supporting frame, fixings, edge finishing, delivery and potentially professional labour.

The best way to budget accurately is therefore:

measure the deck;
choose the exact board;
calculate the board quantity;
allow for cuts and wastage;
design the correct subframe;
add fixings and perimeter finishing;
check delivery;
then add labour if required.

Ready to price your deck? Browse Vigo Home composite decking to compare current board prices, dimensions, colours and profiles.