Redwood Thermowood Board on Board Cladding

Our Scandinavian Redwood Thermowood cladding is the perfect cladding to use both internally and externally. Boasting a rich golden brown colour that fades into a dark grey/charcoal colour, it is a minimalistic and modern solution to cladding without the need for extra oiling and painting to achieve its aesthetic. UV oil can be used to preserve the golden brown colour if you wish.

Even though no additional treatment is required to Thermowood, as it is a modified wood that has been treated by heat in a kiln in high temperatures, it can be easily stained just like a normal planed softwood. This process dries out the core of the wood, getting rid of any moisture and resin within the board and brings the moisture content to around 7-10% with enhanced physical properties, making it much more stable than any other softwood. The process also means it has high resistance to decay and fungal attacks. As the drying process involves heat and water, this means that the cladding is chemical free and therefore a eco-friendly option to use compared to some of the other materials on the market.

Redwood Thermowood can be knotty naturally even after planing though it doesn't affect the material's durability, though we do advise that you should allow an extra 10% on top of usual wastage amounts as the kiln drying process can mean the cladding is prone to splitting. This does not affect the integrity of the cladding but it is something that needs to be taken into consideration as with all kiln dried softwoods.

UK Timber works with the Treatex brand to enable us to offer you treatments and finishes for both internal and external applications. Our Treatex Douglas Fir Protection offers long lasting weather protection for external applications, whereas for internal applications our range of Treatex Hardwax Oils will enhance the woods natural appearance and characteristics. Should you wish to leave it to age gracefully, your boards will eventually turn to a beautiful silvery grey colour.

Please note that the image displayed is for colour and material reference only and does not accurately depict the product listed. As will all of our products, we will continue to update and display as accurate images as we possibly can.

Ready to fix and available in two options - first grade and character:

• First grade is sorted to include only the clearest (most knot free) boards with the straightest grain possible. A perfect choice for all modern and contemporary applications.
• Character will have a mixture of all top four grades, 1 through to 4 - some clear of knots and some straight grain, others with knots and some sloping grain. A perfect choice for all traditional/rustic applications, it gives a less uniformed look, without compromising its excellent durability properties.

We offer the following section sizes:

• 142 x 22mm
• 142/70 x 22mm (it will be an even split between sizes, please reference images)

If exposed to varying weather conditions before fitting your boards, they are likely to cup, warp and split; the ideal time to fit cladding to keep this to a minimum is between the months of October and April and within 7 to 14 days of delivery.

Priced per square metre on actual coverage assuming a 25mm overlap and supplied in random lengths between 1600mm and 4000mm unless otherwise specified for an additional charge:

• Set lengths up to 3500mm - £15 ex VAT per sqm
• Set lengths above 3500mm - £18 ex VAT per sqm

This can be done by adding the 'Set lengths (Internal Cladding)' product to your basket (1 quantity = 1 square meter of cladding). You will need the same amount of cladding and set lengths in your basket to get the set lengths that you need so make sure to double check you have added the correct quantity. 

Please contact our Sales Team on 01536 267 107 should you have any issues.

Still unsure? We offer up to two samples of our cladding boards for a £5 inc VAT postage charge. Should you wish to then purchase cladding boards that are the same product as your samples, we will reimburse you the £5 postage charge upon ordering!*

*Terms and Conditions apply