|Size MM||Per Length|
|17mm X 65mm X 3600mm||£ 13.22|
|17mm X 140mm X 3600mm||£ 17.28|
Planed all round or prepared timber is as it says planed on all four sides.
Durability is the ability of a species to resist decay either naturally or through preservatives. The Class is based on the ability of the heartwood (inner part of the tree) to resist fungal decay. The sapwood (the living outermost portion of the tree)is considered not durable and should not be used for external projects without preservative.
BS EN 350 has 5 classes of durability they are:-
Class 1 to 3 can be left as untreated timber, a natural ageing process will accrue e.g. Cedar will turn a grey colour. Class 4 and 5 will need to be treated with preservatives.
For further information see www.greenspec.co.uk/building-design/cladding-durability-qualityTo order please/enquire call us on 01460 281225, or email or use our Quick Quote Form.
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