Name: British Cedar Cladding
SKU: ACCC
Availability: InStock

8 linear metres per m2

Key Features & Benefits

Here are salient features of British cedar cladding:

Natural durability: It’s rated as EN 350-2 Durability Class 3 (Moderately Durable) for heartwood when used externally (occasionally wet).
Low density / easy to work with: Densities around 330-390 kg/m³ for British cedar.
Stability / movement: The movement class is small — it is relatively stable compared to many softwoods.
Aesthetic appeal: Pale pink to amber heartwood, frequent dark knots, gives a warm, characterful look. Over time, untreated, it weathers to a silver-grey patina.
Low carbon / local sourcing: Being grown in the UK reduces transport footprint; suppliers emphasise its sustainability credentials.
Workability: Easy to cut, fix and finish; takes fixings reasonably well (but see fixings section).

Uses & Applications

This type of cladding is very suitable for:

External cladding of houses, extensions, garden rooms and outbuildings.
Vertical or horizontal board orientations, feather-edge, tongue & groove (T&G), shiplap profiles. Example profiles: feather-edge 22mm→8mm taper.
Interior feature walls as well (though more common external).
Where a durable, hardwood look is desired with moderate maintenance.

8 linear metres per m2

Key Performance Characteristics (Cladding)

Property	What Accoya Delivers / Claim	Notes / Citations
Durability / Rot resistance	Equivalent to Class 1 (highest durability class) in many assessments.	Because of the modification, wood-resisting decay and insect attack is much improved.
Stability / Dimensional Movement	Very low movement (shrinkage/swelling) when exposed to moisture cycles.	BM TRADA tests show Accoya is more stable than many traditional cladding woods (cedar, larch, thermally modified pine)
Warranty	Up to 50 years above-ground in normal cladding use (when designed/installed correctly)	For use less than 20 cm above ground or non-ideal detailing, a 25-year warranty might apply.
Coatings / Finishing	It is ideally suited to coatings (opaque, translucent, textured) because its dimensional stability helps coatings last longer.	There are guidance and spec sheets for translucent, opaque, and factory-applied coatings.
Low Maintenance	Because of its inherent stability and durability, ongoing maintenance is lower compared with many untreated timber species.	Though “low maintenance” doesn’t mean “no maintenance” — coatings, sealing, periodic inspection are still recommended.
Sustainability / Environment	Accoya is made from sustainably sourced wood, no toxic preservatives, and can contribute to low carbon / green building goals.	Accoya offers Environmental Product Declarations (EPDs) and certifications for its products.