Composite Decking Price Guide

Introduction

When planning a garden renovation, the first question is almost always: How much does composite decking cost?

In the UK market (2026), composite decking prices typically range from £37 to £92 per square metre for the boards alone.

However, the final price depends heavily on three factors:

1. Material Quality: Some suppliers use cheaper LDPE plastics (remember, not all composite decking is created equal).

2. Technology: Whether the board is Hollow vs. Solid, or Capped vs. Uncapped.

3. The Subframe: The structural base you choose to build on.

Below, we classify these boards into three quality tiers to help you budget:

• Entry Level (Uncapped Hollow): Great value, starting ~£37.02 per m².

• Mid-Range (Uncapped Wood Grain): Enhanced texture, starting ~£41.65 per m².

• Premium (Capped & Solid): Maximum longevity and stain resistance, starting ~£54.31 per m².

To create this guide, we didn’t just guess. We analysed our own pricing and interviewed 50 professional UK installers to give you the real-world material and labour costs that other guides miss.

Need a quick answer? This is a comprehensive guide. Use the clickable menu below to jump to the section that matters most to you, or see our “At a Glance” table for a quick review.

A Detailed Breakdown of Decking Board Costs

Factor 1: Capped vs. Uncapped Technology

As mentioned, there are different types of composite decking in the U.K. market, these types are broken down into capped and uncapped decking boards. In relation to design the main two sold in the U.K. market are reversible wood grain and reversible grooved. In our experience, wood grain composite decking is the most popular finish. However, there are two types that have entered the UK market: ’embossed’, which is a manufactured texture, and ‘print’, which is a printed-on pattern that can disappear over time. Below we look at each of them and their prices in the U.K. market.

Capped vs. Uncapped: The Technology

In our experience, most customers start by comparing these two technologies based on budget. The difference comes down to one simple question: does the board have a protective outer shell?

Factor 2: Wood Grain vs. Grooved Finish

If you’re driven by cost and opted for uncapped boards your next choice is between the woodgrain finish or the classic grooved. From a strength and cost perspective, woodgrain boards are almost always more expensive and they come in array of colours and design now with advances in technology. In most cases, wood grain boards are stronger than grooved boards because their structural walls are thicker. However, remember that these boards have been tried and tested for a decade. Even though many look similar, not all composite decking is made the same, so always check reviews and samples for quality. Let’s look at the cost of these two popular boards.

This choice often comes down to the aesthetic you want to achieve in your garden. Both are excellent options, but they cater to slightly different priorities.

Factor 3: Solid vs. Hollow Core

The debate between hollow and solid core boards often comes down to balancing cost against strength. The price difference is significant because composite decking is priced by weight; solid boards use more material, so they cost more. While solid boards are excellent for high-traffic commercial areas, for the average homeowner, modern hollow boards offer much better value for money. If strength is a key concern, we recommend choosing a board with a circular hollow core design for enhanced rigidity and longevity.

Subframe & Clips Cost

When discussing the price of composite decking, it is vital to include the “hidden” costs required to complete the full project. In this section, we review clips, subframes, and fitting. These are genuine costs that must be calculated alongside the boards to give you an accurate total project price.

Clips

When it comes to fixings, you have several choices. The most common are standard Plastic Clips or the more discreet Slim Clips.

Note: You can avoid clip costs by purchasing solid, non-grooved boards and screwing through the face (like timber), but this requires careful pre-drilling and a precise understanding of the material to avoid splitting.

Finishing touches that may increase your project

In our experience, many customers, upon calculating the cost of composite decking, can forget the add-ons. On top of installation costs, you may also have additional costs to consider. These additional costs could be for clips, decking accessories, or maintenance equipment. You may also choose to add finishing touches and features to your decking design.

Project Case Study: The True Cost of a 10m² Deck

To bring all these costs to life, let’s break down the total price for a standard 10 square metre (e.g., 4m x 2.5m) decking project in the UK.

Now, let’s review the total cost for installing different types of our composite decking boards.

Conclusion

There is a wide variety of composite decking on the market, all priced for different reasons, yes you may find cheaper options on the likes of EBAY, Market place but it’s key as explained before that even though they are similar not all composite decking is made the same.

• For Value: Look at Hollow Uncapped boards (starting ~£37.02/m²).

• For Authenticity: Upgrade to Wood Grain finishes (starting ~£41.65/m²).

• For Longevity: Invest in Capped or Solid boards (starting ~£54.31/m²) for superior stain/fade resistance.

The option is down to your personal preference and requirements when purchasing so now you have great understanding browse our full composite decking collection today.