Traditional screw-fixed decking in thermally modified Scandinavian pine. Three profiles (D5, D6, SHP) and a wide choice of sizes — stable, rot-resistant boards that stay flat and last.

The classical range is our screw-fixed thermowood decking for those who prefer the familiar, proven installation method and a wide choice of profiles. Every board is thermally modified Scandinavian pine, so its equilibrium moisture content is permanently reduced — the boards react far less to weather than untreated wood, which means less warping, cupping and movement over the life of the terrace.

Choose from three profiles to match the look you want: the ribbed D5 and D6 profiles for grip and a defined shadow line, or the smooth SHP profile for a clean, contemporary surface. All are available in generous lengths and can be laid on our thermowood support beams for a complete, long-lasting terrace build.

Key Benefits:

• Thermally modified pine — stable, rot-resistant, chemical-free
• Three profiles (D5, D6, SHP) for different looks and grip
• Wide size and length range
• Proven screw-fix installation
• Ages to an even finish; pairs with matching Thermowood beams

After the thermal modification process, the wood has lowered equilibrium moisture content and the decking does not react to changes in humidity as drastically as untreated wood. The decking is dimensionally stable and retains its shape far better than untreated wood.

Wood products with decay resistance classes of 1 and 2 are suitable for outdoor use without any additional treatment.
We use FSC® and PEFC certified and especially for thermal modification selected lumber.

Technical specifications:

Thermal modification is a 100% natural method for increasing the durability and dimensional stability of wood, likewise for reducing water absorption. During the process, the wood is heated to a temperature of 180-220°C, while lowering the mois- ture content of the wood up to 4-6 %. Thermoarena conducts careful quality control of the wood before and after thermal modification. The lumber used for TM is checked and certified.