Composite decking board prices for 2026 | Get ready for next season!

What will composite decking cost in 2026?

Bear in mind that price fluctuations affect all products for the composite system, so you need to take into account the components it consists of, namely fixing clips, composite joists and cover trims.

• Composite decking - board prices have been fairly stable for almost 2 years, with no fluctuations in the dollar exchange rate and sea freight having stabilised, so composite decking prices in our range will remain unchanged, starting at 18.90 PLN net per 1 linear metre board. In the case of SELECT composite boards 

• Composite joist – we have added another size to our range, so we now stock it in two lengths, 4m and 2m, and will quote the price per 1 linear metre.  Price per linear metre is: 13.85 PLN net per composite joists in 2025 and 2026.

• Cover trim – available in two variants, as an angle trim and a skirting trim both are the same price per 1 linear metre, and will remain so in 2026: 14.21 PLN net. 

• Fixing clip – two types of clip: a plastic clip and a stainless steel clip, priced at 109.90 PLN net per pack, which contains 100 clips together with a stainless steel screw.  

These 4 components make up the composite system, whose price has fluctuated over the years, but we know that prices in 2026 will be the same as in 2025.

What if I want an aluminium joist?

With aluminium joists it’s a different matter: we buy them from Polish manufacturers, and unfortunately they set the prices. Aluminium is sold to us by the kilogram, so a small change in the price per kilogram can lead to a significant change in the price of the joist and a considerable one at that. At the moment, prices are fairly stable, and we have held them at this level for almost a year. So we can confidently say, that the price of an aluminium joist for 2026 will be the same as, or close to, the price in 2025. 

How can you save money when buying composite decking?

1. GARDPOL pre-order offer - during the autumn and winter, we offer composite decking and accessories needed to build a terrace as part of our ‘PRE-SALE’ offer. This means the customer buys the decking 20%-30% cheaper than during the regular season, and we manufacture and deliver the goods within 2-3 months of purchase. 
2. Bulk purchases - when buying large quantities, you can expect discounts that reduce the transport cost and the overall cost of the goods, so we encourage you to contact our sales team by phone or email. 
3. Summer promotions - during selected weeks of the year, we run what we call the 'SUMMER SALE', our summer sale, where you can get a discount of up to 10%. So we encourage you to keep an eye on our offers on Facebook or our website. 
4. Collection in person - our delivery times are not always convenient for customers, which often leads them to use third-party transport, increasing the final cost of the whole order. If a customer is able to collect the goods themselves from our warehouses, we encourage them to do so, as this automatically reduces the delivery cost to 0 zł. 
5. DIY installation - if none of our promotions apply at the time, we encourage you to install it yourself if possible, of course. Avoiding the cost of installation services from us or another company can save you a considerable amount. 
6. Changing the joists - If you want to reduce costs by modifying the composite system, you can replace the composite joists with cheaper pine timber joists, which are also suitable for building a composite decking terrace. 
7. Negotiate! - If you’re speaking to our representative or sales adviser, try to negotiate and ask for a discount. It costs nothing, and there’s a chance you might secure a small discount that reduces the overall cost of your purchase. 

What costs should I expect when building a composite decking terrace?

The costs involved in building a terrace include:

• Composite materials - the products listed earlier in this article, from composite decking boards through to corner trims 

• Preparing the base - a significant cost may be building the base for the entire composite system, which can involve replacing the soil, laying masonry blocks, and so on.

• Installing the composite system - installation prices for a composite decking terrace range from 70 to as much as 150 zł per m2 depending on the city in Poland.

• Design and landscaping - some customers incur additional costs when building a terrace because they need a visualisation or technical design for their installer, which also increases the total project cost. 

In summary, the cost of building a terrace comprises several elements, each of which can affect the overall investment in different ways. 

FAQ – a brief guide to composite decking prices: 

1. How much does one linear metre of composite decking cost?
The price depends on the manufacturer and model, and usually ranges from 20 to 40 zł/linear metre.

2. How much does 1 m² of composite decking cost?
On average, from 150 to 350 zł/m² (decking + joists + installation).

3. Why do composite decking prices vary?
The differences depend on the quality of the composite, the thickness of the board, the surface finish and the manufacturer’s reputation.

4. Is composite decking more expensive than timber?
Initially, yes, but lower maintenance costs mean composite decking works out cheaper in the long term.

5. Are installation accessories included in the price of the decking?
Usually not – clips, joists and finishing trims are sold separately.

6. What does the final cost of a deck depend on?
The chosen decking model, the size of the deck, the type of joists and the installation method.

7. Is it worth paying more for premium composite decking?
Yes – as the price increases, so does the board’s overall aesthetic appeal.

8. Does the price include deck installation?
No, installation is priced separately and costs an average of 70–150 zł/m².

9. Can I get a discount when buying a larger quantity?
Yes, most sellers offer discounts on larger orders.

10. Do composite decking prices go up every year?
Yes, prices usually rise by a few per cent each year due to production and transport costs.