| Material | Thermowood |
| Width | 144mm |
| Thickness | 19mm |
| Face Coverage | 137mm |
| Grade | ??? |
| Treatment |
Untreated, Redwood Thermowood offers excellent durability and natural resistance to decay and insects, making it an ideal choice for external use. Its enhanced thermal modification process improves its stability and resistance to weathering, ensuring reliable performance in exposed outdoor environments. To maintain its natural appearance and extend its lifespan, we recommend applying a suitable wood oil or stain, such as OSMO. This helps to preserve its rich, warm tones while providing additional protection against cracking and the effects of UV exposure. Staining enhances the timber's durability, ensuring it retains its structural integrity and aesthetic appeal over time, making Redwood Thermowood a reliable and long-lasting option for outdoor projects. |
| Finish | Planed Timber |
| Length | Available in 0.9m, 1.2m, 1.8m, 2.4m, 3.0m, 3.6m, 3.9m and 4.2m |
| Buying Guide | Unsure which cladding to go for? Take a read of our full Cladding Buying Guide |
| Type |
Softwood |
| Origin |
Finland |
| Durability |
Class 2 |
| Movement Class |
Small |
| Knots |
Variable |
| Colour |
Deep, rich brown tones that weather to an elegant silver-grey |
| Modified Timber |
Yes, thermally modified |
| Fixings |
Stainless Steel |
| Recommended Wastage |
15-20% due to Brittleness |
| Key Points |
Heat treatment significantly increases durability and stability. |
Thermowood Tongue and Groove (T&G) cladding provides a durable and sustainable solution with a sleek, seamless finish. Manufactured through a heat-treatment process, Thermowood is naturally resistant to rot, decay, and insects, offering an eco-friendly alternative to chemically treated timber.
The T&G profile ensures a tight, interlocking fit, delivering excellent weather resistance and a smooth, refined appearance suitable for both traditional and contemporary designs. Thermowood’s enhanced stability minimizes warping, swelling, and shrinking, guaranteeing a consistent, high-quality finish over time.
With its rich, warm tone that can be left untreated to weather into a natural grey or stained to suit your design preferences, Thermowood T&G cladding is a versatile choice. Ideal for exterior facades or interior feature walls, it is perfect for builders and architects seeking a combination of durability, aesthetic appeal, and environmental responsibility.
Key Facts
- Tongue & Groove Profile
- Enhanced Durability
- Eco-Friendly
- Dimensional Stability
Other Options
- Redwood Thermowood - Thermowood undergoes a heat treatment process that enhances its durability and stability, making it highly resistant to moisture and rot while being eco-friendly and sustainable
- Redwood Thermowood Loglap - Profiled Version of the cladding
- Redwood Thermowood Shadow Gap - Profiled Version of the cladding
- Redwood Thermowood 6" x 1" Board - Profiled Version of the cladding
- European Larch T&G - Profiled Version of the cladding
