Material Thermowood Width 145mm Thickness 18mm Face Coverage 125mm 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.Low moisture absorption, reducing the risk of warping or shrinking.Highly stable under varying weather conditions.Enhanced lifespan due to improved resistance to decay. Get a Quote! Click Here Board Run It's important to tell us which way your cladding will be running as depending on the desired orientation of your cladding, the timber needs to be cut differently. Vertical run cladding naturally channels water downwards, however if cut incorrectly horizontal profile boards may trap water inside the shadow gaps, making it more susceptible to weather-related issues like rot. To combat this, horizontal boards are cut with a slight angle in the gaps to help the water run off, while vertical boards retain a nice crisp edge. 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 Iroko Shadow Gap - Iroko Version of the cladding Redwood Thermowood 6" x 1" Board - Profiled Version of the cladding European Larch T&G - Profiled Version of the cladding