Cedar Cladding

Cedar is one of the best-known timber species for cladding in the UK, and a go-to for many architects and builders. At EcoChoice, it is frequently on our list of recommended species, too. Whether you are looking into cladding for a garden shed or to protect the exterior of a large commercial building, cedar could be exactly what you are seeking. 

UK and Canadian-Grown Cedar

The Cedar tree used in cladding (Thuja plicata) grows in many different regions of the world. Where we source your timber can affect its characteristics, with local climate and soil conditions changing the colour, knot content and durability.

The two types of Cedar we source for cladding are Canadian Western Red Cedar and British-grown Cedar.  

Canadian Western Red Cedar

Canadian Western Red Cedar is the largest tree in the Cedar family, with the biggest growing up to 75 metres tall. The timber itself is darker than other varieties with a beautiful colour variation and a characteristically red hue (hence the name!). It also has fewer knots and is incredibly dense, making it super durable.

Interestingly enough, Canada also grows White Cedar trees. These are very light in colour, and are not quite as popular as Red Cedar.

British Cedar

Cedar trees which grow in the UK are noticeably lighter in colour than Canadian Western Red Cedar, with more of a creamy colour to the timber with dark brown streaks. British Cedar has more knots and is less dense than Canadian Western Red Cedar, and therefore not quite as durable. Canadian WRC is obviously more expensive, but you get a timber that is more durable and has less knots.

Canadian Cedar
Canadian Western Red Cedar

Why Choose Cedar?

One of the main reasons Cedar cladding is so popular is because of its durability. Cedar is incredibly stable and offers wonderful resistance to rot and infestation, even when left untreated. The low levels of resin within the wood also allow for excellent staining and treatment options if required.

Lightweight, sturdy and undeniably beautiful, Cedar always makes a good choice for cladding. If you are looking for an easy option to clad your building, we would always suggest looking into Cedar.

Cedar from EcoChoice

EcoChoice delivers both Canadian and British Cedar cladding in a range of profiles, including shiplap, tongue-and-groove and feather edge. Working within your schedule, we will source and deliver your Cedar timber straight to your project’s site. If necessary, the Canadian Cedar cladding boards can be delivered pre-stained or fire-treated to Euro Class B (class 0).

Standard sizes tend to be 19x90, 19x115, 19x140 and 19x190mm, though we can source more unique sizes if needed.

Sustainable Cedar Cladding

At EcoChoice, we always focus on sourcing your timber sustainably. When you choose EcoChoice Cedar cladding, you will be choosing FSC-certified, responsibly sourced timber which supports local environments and protects native species. Your cladding will be actively helping to save our planet’s forests and woodland, as well as the communities who live in and around them.

Find Your Cedar Cladding Match

If you have got your heart set on Cedar cladding or would like to know more about your options, reach out to our timber experts. We can tell you more about the profiles and treatments available, and hear more about your project to ensure we match you with the right timber species.

Canadian Western Red Cedar
British Cedar
British Western Red Cedar
British Western Red Cedar in London
British WRC at London development
Trade Name Canadian western red cedar
Species Thuja Plicata
Intended use External cladding
Appearance Canadian western red cedar has a strong, distinctive grain. The colours vary widely from dark chocolate brown to light pink.
Weathering If left untreated, cedar will naturally weather to a silver grey colour although the process can be inconsistent depending on shade, ventilation, moisture and pollution.
Profiles See our standard profiles page
Lengths Random 1.8 – 3.7mt +
Moisture content 16 – 25%
Natural durability (EN350-2) Durable Class 2
Insect attack Resistant
Desired service life:(BS8417) Occasionally wet 60 yrs
  Frequently wet 30 yrs
Treatability class Extremely difficult, Difficult (Sapwood)
Moisture Movement Small
Resistance to impact Low
Resistance to fixing Low
Mean density 330 – 390 kg/M3
When to fix No restrictions
Grading

BS1186-3 1990 Class 2. EN942:2007. J20. CE grade A. Clean with a few sound knots.

(Commonly sold with the trade grade description No2 Clear & better, allowing 15% 4ths)

Working properties

Good workability. Takes fixings satisfactorily. CWRC is soft and relatively brittle which can result in bruising and splintering.

Pre-drilling recommended near board edges - see our TDCA guides.

Extractives

Western red cedar contains reactive oils, which will corrode ferrous metals.

When the two come into contact, a blue sludge is formed that will stain the wood and anything else it meets.

All fixings used in conjunction with western red cedar should be stainless steel.

The oil is brown in colour and could also leave unsightly brown stains on the surface of the cladding and

will stain any porous materials below the cladding. The reactivity of the oil makes western red cedar cladding unsuitable for polluted areas and shaded areas.

Emission of formaldehyde (EN14915) E1 (Not significant)
Reaction to fire (EN14915) Euroclass F (Untested). D-s2, d0
Fire treatment Possible by impregnation
CE compliant Yes

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from any errors or omissions on this website nor for any damages resulting from the use of the information.