External Profiled Cladding

British Western Red Cedar

For Hardwood, Imported Cedar & Larch see menu

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We supply traditional feather edge cladding, and a range of profile cladding also know as Tongue and Groove. Profile claddind is kiln dried and planed to a smooth contemporary finished. It can be used internally or externally and will take a stain if required but Cedar and Larch do not need to be treated.

Feather Edge cladding is a more "rustic look" and can be purchased, Fresh Sawn:- also know as "green" is cheapest and is best used early Spring and Autumn. Air Dried:- we stack and rack and leave for minimum of 20 days, it has an average moister content of 20% and is best used during the warmer summer months.

Locally sourced from Somerset and surrounding counties, we deliver locally and nationally.

Home Grown Timber is the ultimate sustainable building material. Throughout history wood has been used as a material for cladding both internal and external in homes and commercial building. Today with the increasing awareness of environmental issues and the need to use sustainable materials in construction profile cladding is as popular as ever.

Timber has excellent thermal properties, is environmentally friendly, adheres to the codes for sustainable homes (code level 6 timber ) requires minimal expertise to work with and install, furthermore has the added befit when using ageing well with time.

Here at Co2 Timber we supply a range of cladding suitable for modern, rustic and traditional situation. We source the trees from within the UK in an attempt to reduce our co2 footprint and our trees come from as close to our saw mill as possible.

What home grown (UK) timber is the most durably for cladding?

Does not need treating:- Western Red Cedar and Larch moderately durableBS EN 350-2 class 3.

Needs treating :- Douglas Fir slightly durable BS EN 350 Class 4 (most cost effective species).

Please see durability rating at the bottom of this page.

British Western Red Cedar - Home Grown (UK)

Is among the most popular softwoods used today it's natural resistance to decay and moisture absorption means it can typically be installed without treatment. Rated BS EN 350 class 3 moderately durability (see below) and is subject to little movement when installed.

Larch - Home Grown (UK)

Home grown Larch is a viable cladding alternative, as well as the first choice for many. It's a harder timber making it more resistant to impact damage and is more suited than Cedar for structural applications, such as support columns, door frames, window frames.

Douglas Fir - Home Grown (UK)

Is another good softwood being rated BS EN 350 4 slightly durable (see below) it therefore requires a protective coating when installed externally.

What can I use Timber Cladding For.

Due to it adaptability there are thousand of situation which lend themselves to cladding with timber rather than PVC or alternative materials. Typical uses :- Summer houses, Green houses, Conservatory, boat building, garden offices/workshops, door frames, windows frames, supporting timber, decking, decking rails, Yorkshire Boarding, raised beds, trellis, fencing bee hives (Cedar) and as the traditional cladding of barns, houses and offices. We have some images on our Customer Projects page and our Pinterest page.


When selecting your timber type for your project it is worth taking in to consideration BS EN 350 timber durability class.

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-quality