Thermo-Treated Timber Decking

Thermo-Treated Timber Decking ÔÇô A Sustainable, Durable, and Beautiful Solution

Thermo-treated timber is a type of timber that undergoes a high-temperature process that enhances its strength, stability, and resistance to decay. This innovative treatment extends the lifespan of the wood and enriches its natural beauty, providing a rich, contemporary finish that is ideal for the UK’s variable climate. Our range of thermo-treated timber decking offers low maintenance and eco-friendly benefits too, making it the perfect solution for your outdoor space.

Explore Our Thermo-Treated Timber Decking Options


Pine Decking D34 - 115 x 26 mm

What is Thermo-Treated Timber?

The thermo-treatment process is a revolutionary method that significantly enhances the properties of natural timber, making it an ideal choice for outdoor decking. This process involves heating the timber to temperatures as high as 215┬░C, in a controlled environment, without the use of chemicals. The high heat alters the cellular structure of the wood, resulting in several key improvements.

  1. The process reduces the wood’s moisture content to minimal levels, which enhances its stability and significantly reduces the risk of warping, cracking, and swelling.
  2. The high temperatures used in the process effectively eliminate any resins and reduce the wood’s susceptibility to decay and insect attack.
  3. The thermo-treatment process enriches the wood’s natural aesthetic appeal. The high heat deepens the wood’s colour, giving it a rich, dark, and uniform appearance that enhances the overall beauty of any outdoor space.

The Benefits of Thermo-Treated Timber Decking

Durability and Longevity

Our thermo-treated timber decking is specifically designed to offer superior durability. The high-temperature treatment process significantly enhances the wood’s structural integrity, making it resistant to warping, cracking, and rot. This ensures that your decking remains in excellent condition, even after years of exposure to rain, frost, and varying temperatures.


Maintenance Effort

Traditional decking requires regular maintenance to prevent weather damage and maintain its appearance. Thermo-treated timber decking, however, offers a low-maintenance solution. The thermo-treatment process stabilises the wood, reducing its susceptibility to moisture absorption and decay. This means that your decking will require fewer treatments and less frequent upkeep.


Pine Decking D45J - 118 x 26 mm

Environmental Impact

For environmentally conscious homeowners, thermo-treated timber decking is an ideal choice. The treatment process is completely chemical-free, relying solely on heat and steam to enhance the wood’s properties. This not only makes the decking safe for your family and pets but also reduces its environmental footprint.


Aesthetic Appeal

Our thermo-treated timber decking offers a unique and contemporary look for any garden. The high-temperature treatment process deepens the wood’s natural colour, resulting in a rich, dark finish that highlights the grain and adds a touch of elegance.


Safety Concerns

Safety is a key consideration, particularly for families with children or elderly members. Thermo-treated timber decking offers improved stability and reduced water absorption, which helps maintain a non-slip surface. This makes it a safer option for outdoor areas, reducing the risk of slips and falls during wet conditions.


Pine Decking D45J - 118 x 26 mm

Spotlighting Our Thermo-Treated Timber Decking Range

We offer an exceptional range of thermo-treated timber decking, perfect for upgrading any outdoor space with durability and style. Our collection includes several high-quality options, each tailored to meet specific needs and preferences:

THERMORY® Pine D45J 118 x 26mm

Crafted from Scots pine, Thermory® Pine decking boards redefine softwood decking with their outstanding durability and stability. The thermo-treatment process ensures these boards are eco-friendly, boasting a dark, rich finish with distinctive knots and no visible sapwood. Pre-grooved for use with PACS Clip Strips, these boards offer easy installation and a flawless, screw-free surface.

Ash Decking D45J 118 x 21 mm


Our Thermory® Ash decking boards are known for their exceptional durability and dimensional stability. Harvested from well-managed forests in North America, these boards undergo an intense thermo-treatment process that results in a deep, rich colour throughout the timber. Eco-friendly and barefoot-friendly, they are pre-grooved for use with PACS Clip Strips, making installation straightforward and secure.

Ash Decking D34 - 130 x 26 mm


These thermo-treated Ash boards are a stunning choice for any deck, offering outstanding durability and a dark, rich finish. The rebated edges are designed to accept TENI Clips, allowing for a beautiful decking surface with no visible screws. Perfect for roof terraces, these boards are half the weight of Ipe, providing excellent strength without added bulk.

“Great product at a reasonable price, more importantly, it’s made in the UK!”

Why Choose Thermo-Treated Timber Decking for Your Home

Exceptional Craftsmanship

Our decking boards are crafted with meticulous attention to detail. Whether it’s the rich, dark finish of Thermory Ash or the distinctive knots of Thermory Pine, our products reflect the highest standards of quality and craftsmanship. This commitment to excellence ensures that each decking board not only looks beautiful but also performs exceptionally well.


Easy Installation and Maintenance

Our decking boards are designed for easy installation with innovative systems like PACS Clip Strips, which allow for a flawless, screw-free surface. The stability provided by the thermo-treatment process also means that maintenance is minimal, allowing you to enjoy your outdoor space with less effort.

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Experience the Lasting Beauty of Thermo-Treated Timber Decking

Our range of thermo-treated timber decking combines advanced technology with natural beauty, offering homeowners eco-friendly, durable, and visually stunning decking solutions. Whether you prefer the distinct knots of pine or the rich hues of ash, our collection provides the perfect options for creating a stunning outdoor space.