Thermo Ash Prime KD French decking board 21 × 130 mm system board tongue & groove

Thermo Ash Prime KD French – 21 × 130 mm decking board with tongue & groove system

Elegance in French design – sophisticated thermo ash for stylish patio areas.

The Thermo Ash Prime KD French 21 × 130 mm decking board with tongue-and-groove system combines exclusive design with outstanding durability. Thanks to the precisely machined system profile on the ends, the boards can be installed virtually gap-free. This creates a harmonious, continuous look known from high-quality French patio design.

Made from local ash, the wood is treated in a sophisticated thermal refining process. This not only creates the characteristic deep brown hue, but also significantly increases resistance to weather, fungi, and pests. The result is a dimensionally stable, durable, and low-maintenance premium wood for demanding outdoor areas.

With a durability class of 1 according to DIN EN 350-2, thermo ash is one of the most resistant wood species for outdoor use. It represents a good alternative to tropical wood and impresses with its dimensionally stable structure and pleasant haptic properties.

Processing & Installation:

• Thermally modified wood – significantly reduces swelling and shrinking

• Maintain a gap of at least 4 mm during installation

• Pre-drilling recommended to avoid stress cracks

• Easy to install thanks to a precise tongue-and-groove system

• Kiln-dried (KD) – for high dimensional stability

Advantages at a glance:

• Thermo Ash Prime KD French 21 × 130 mm decking board

• High-quality system board with tongue & groove

• French profile – elegant, low-gap appearance

• Thermally refined for high durability

• Durability class 1 – weather-resistant

• Good alternative to tropical wood

• Kiln-dried (KD) for optimal dimensional stability

• Warm, dark color with natural grain

• Ideal for patios, balconies, and high-end outdoor areas

With the Thermo Ash Prime KD French system board, you are choosing modern design and craftsmanship. For anyone seeking an aesthetically demanding, long-lasting, and low-maintenance decking solution – entirely without tropical wood.