Installing composite decking boards – how much does it cost in 2025? Current prices

A composite deck is a modern alternative to a natural timber deck that has grown—and continues to grow—in popularity in recent years. More and more homes across the country now feature composite structures, valued by users for their attractive appearance and durability. 

In 2025, prices for many services and materials have risen, which has also had a real impact on how much it costs to build a deck in 2025 . So how much should you expect to pay to buy and install a composite deck on your property, and what affects the final total?

Prices that rose in 2025

The past few months have seen prices rise. Significant increases can be seen above all in the cost of raw materials, but also in energy and fuel. This year, we will pay more for both timber and plastics such as PVC and HDPE, the two main materials used to make composite decking boards. Fuel price rises also affect the final price of the product itself or its installation. 

It is also worth bearing in mind that labour costs are rising for qualified specialists who install timber or composite structures. The time of a good tradesperson is very valuable today.

Why composite decking boards are popular

Despite the continuing rise in the cost of services and raw materials, as well as the cost of composite deck installation, these structures remain hugely popular. This is because composite decking boards offer a range of valuable benefits that effectively convince a wide range of users, who are willing to pay for their comfort and satisfaction. The main advantages of composite decking boards include:

• exceptional resistance to both everyday use and numerous external factors. Composite decking boards cope extremely well with moisture, rain, strong winds, frost and UV rays;
• a high level of safety; composite decking boards have an anti-slip surface with no tiny splinters protruding from it;
• attractive styling that suits both classic and modern settings; composite decking boards look particularly appealing and are available in a dozen or so colours and several different finishes; 
• quick and easy installation – composite is a material that can be installed quickly and is made to last for years; it looks great on your property for a really long time. 

It is also worth noting that modern composite decking boards do not require time-consuming maintenance or regular treatment later on. Composite is resistant to the weather, as well as to everyday wear and all kinds of dirt. It performs well without any additional protective treatment. 

Installing a composite deck – how much does it cost and what affects the price?

To answer the question how much does a composite decking board deck cost in 2025, it is worth understanding how many different factors make up the final amount we will have to pay. 

Cost of composite and timber decking boards

Composite decking boards are popular construction components today and are particularly often chosen for building decks, finishing balconies and creating many other structures around the home. These boards are made from high-quality wood flour, special PVC or HDPE plastics, and additives that enhance their properties. This combination gives composite decking boards exceptional durability and resistance while retaining their attractive appearance.

Composite decking boards are available in a dozen or so colours, different sizes and several other variants. They are also divided into, among others:

• Select decking boards;
• Duo decking boards;
• Premium decking boards.

They differ in details of their construction and how easy they are to install. 

It is difficult to say exactly how much a m2 timber or composite deck costs, since different types of composite decking boards come at very different prices. Standard boards cost between 80 and 150 zł per square metre, while premium-grade boards with additional protective coatings cost between 180 and 300 zł per square metre. Cheaper options are available on the market in the form of budget boards, which cost around 60-80 zł, although these are not products that impress in terms of quality or appearance. 

Cost of other structural components

Building a deck at home requires basic components that are visible once the work is complete, but not only these. A solid, durable and safe deck also requires installation components that support the entire structure or securely connect its individual parts. 

These include strong composite joists that can withstand loads, as well as tall posts or wide concrete blocks on which the decking boards are laid. They also include stainless steel screws and fixing clips, which ensure a high level of safety and stability for the deck, as well as an attractive finish. Finally, there are finishing trims, including side and corner trims, which allow the deck to be finished safely and neatly. 

Cost of additional components 

A deck made from timber decking boards or composite decking boards can include basic components as well as additional ones that enhance its appearance, style and character, as well as its safety and functionality. One such feature is a set of steps, which provides a simple and attractive connection between the deck and the garden below. The steps need to be carefully planned and built so that they fit in well with the overall design and fulfil their main functions. 

Another additional feature that has a real impact on the final cost of the entire deck is handrails and balustrades. With their carefully finished appearance, these components complete the look of the deck while also making it safer to use. 

Deck size

It is difficult to answer the question of how much a timber or composite deck costs without knowing the size of the planned structure. The size of the deck directly affects the final amount we will pay for its installation. The larger the deck, the more materials will be needed to build it. This applies both to the main components, such as composite decking boards, and to structural parts such as blocks, posts, joists, screws and clips. 

Complexity of the installation work

One of the key factors affecting the final cost of deck installation is the complexity of the project. The more complicated the structure, the longer it takes to build. Experienced specialists’ time is valuable, so we will pay more for complex structures that require many hours of work. 

Complex projects may include:

• the need to level out differences in ground height;
• creating unusual deck shapes, especially curved elements;
• building and installing additional deck features such as steps, treads, an extra level or platform, or long balustrades.

Transport

When calculating the final amount we will have to pay for professional composite deck installation, it is also worth taking into account the cost of transporting all its components. This amount is usually agreed individually, depending on the number of components being transported and the distance they need to be moved.

Personalised quote from Garden Polska

The cost of designing and installing a composite deck can vary considerably, depending on the size and complexity of the planned structure, as well as the type of decking boards used. It is therefore worth contacting specialists who can provide a personalised quote for the project. Garden Polska’s experts can do this: after carefully assessing the customer’s needs and expectations, they provide a free quote for the entire project, including transport and installation.