Our Wootton Basset showroom is open for appointments, and you can book a visit to our Timber Shed to browse and select timber for your projects. We have covid-safety measures in place, and ask that all visitors wear masks indoors and outdoors when on our premises.
Please don’t visit our sites without an appointment and a mask. We are still taking orders for cladding, beams, planks and flooring by phone and email.
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Air-dried oak cladding boards are dried naturally to bring the moisture content down to a level suited to external use. We offer this product either in solid random lengths or in longer finger-jointed boards at 4.0 mts.
Green oak cladding is cut directly from the log and supplied wet. Green oak cladding is a relatively cost-effective choice when compared to dry oak.
Both oak and sweet chestnut are classed as naturally durable and they will last for many decades as uncoated timber cladding providing they are fitted correctly.
What makes both species durable is tannin, which is a naturally occurring acid within the wood. While being useful to keep the bugs at bay it can also cause a nuisance. Tannin will react with ferrous metal and it will stain porous surfaces such as render.
You MUST make sure that all fixings are made of stainless steel! Anything else, will result in blue stains around the fixings. Tannin on the surface of the cladding boards can also affect the consistency of weathering and lead to blackening in polluted environments.
Oak is a relatively unstable wood specie. As such, oak boards will shrink and expand through the year and in some cases, the boards may cup and split a bit. Green oak will shrink by approximately 10% across the thickness and width as it dries out.
By contrast, sweet chestnut is a stable wood specie and it behaves very well as timber cladding. Apart from the problems associated with tannin, sweet chestnut has all of the qualities that we value for cladding. The wood is stable, it is lightweight and the colour and grain is relatively consistent.
Air dried oak is available in a range of profiles, although due to its relative instability, we recommend simple overlapping profiles such as Halflap (VHL), Shiplap (VSL) and Splayed (VSP).
We specifically advise against tongue and groove (VTG) profiles for oak cladding and especially profiles that allow for secret fixing. Oak is too unstable and strong for such delicate fixing details.
Green oak is best suited to sawn cladding profiles such as waney-edge (VWE), feather-edge (VFE) and square-edge (VSE).
Sweet chestnut cladding is a more stable wood and as such all machined profiles are suitable, including secret fix tongue and groove.
Oak and sweet chestnut boards can be installed vertically or horizontally but be sure to select the appropriate profile. Vertical oak cladding will require a double battening system, while horizontal oak cladding only requires a single battening system.
As with all cladding, it is important that you follow some basic rules. Take some time to browse through the Resource Centre. If in doubt give us a ring and we will do our best to answer your questions.
Always fix oak cladding directly through the face of the cladding boards with ring shank nails or screws. Because oak is unstable we strongly recommend that you avoid installing the boards using hidden fixings. Only use stainless steel nails or screws to fix your oak and sweet chestnut cladding boards to avoid staining and corrosion. Don’t spoil your job for the sake of a saving a few pounds on nails.
We recommend that you do not install green oak during the summer months because it is likely to distort and split. Air-dried oak and sweet chestnut can be installed year round but ideally avoid the hottest months. We can supply the stainless steel fixings with your cladding.