Accoya® exterior cladding
Accoya® cladding comes with a flawless finish and top-tier performance.
Accoya® Gallery
At a Glance
Species
Radiata Pine
Origin
New Zealand
Appearance
Knot-free appearance and exceptional coating performance
Appearance
Primarily clear of knots with little figuring. Most commonly supplied painted or oiled due to Accoya’s exceptional coating performance. Accoya Color Grey has a consistent grey colour throughout the board, designed to last for the lifetime of the product.
Grade
Follows our stringent in-house grading process, with every board graded by hand
Grade
Accoya® wood is available in four grades — A1, A2, A3 and B. We use only the cleanest, A1, grading it further in-house to our Russwood Select standard.
Modified timber
Yes
Modified timber
Radiata Pine is modified through a non-toxic acetylation process to create a high-performance timber with superior stability and durability.
Coatings
Ultimate surface for factory-coating with opaque and translucent paint, or oil
Coatings
Accoya® is the ultimate surface for factory-coating with opaque or translucent paint. Virtually no shelling, cracking, checking or fissuring will occur. Coatings can be expected to last up to three times longer than on unmodified timbers, substantially reducing maintenance requirements. Accoya® Color Grey is not suitable for paint coating, as the colour is integral to the timber and designed to be left uncoated.
Durability
Outstanding durability and 50-year warranty
Durability
Outstanding durability (Class 1 – 3 BS EN 350-2) due to modification. All Accoya products come with a 50-year Accoya warranty as standard.
Stability
Excellent stability
Stability
Excellent stability; swelling and shrinkage is virtually eliminated in Accoya®.
Surface finishes
Recommended surface finishes depend on the coating system and your project specification. Please contact our Specification Team for further information.
Fire retardant
Accoya® can be treated with Burnblock® fire retardant, but Accoya Color Grey is not currently certified for fire retardant treatment.
Sustainability
Sustainably sourced from well managed forests. EPD available. Cradle-to-Cradle Gold certification.
Weathering
Uncoated Accoya® is a cream/light straw colour, which will take on a silvery-grey appearance when left to weather naturally. Accoya Color Grey is grey throughout the cross section of the product, providing a consistent appearance from installation. Slight darkening naturally occurs as the timber weathers, creating a richer tone over time.
Density
Medium – approximately 592 Kg/m³ at a moisture content of approximately 8%.
Application
Suits projects where the highest performance and coating longevity are required — extreme locations, challenging climates, or demanding applications such as roofing and spans. Various lengths, including fixed lengths, available from stock.
See how Accoya® compares with other species.
Accoya is made from radiata pine, a fast-growing tree sourced from well-managed forests in New Zealand. The timber is then modified using a non-toxic acetylation process, giving the cladding unmatched stability and durability. We only supply Accoya in A1 grade, the highest available which ensures a clean and knot-free appearance. Virtually zero swelling and shrinkage means less maintenance in the long term.
Accoya can be machined into a range of cladding profiles to suit different design requirements, and it is available in various lengths. We have a range of face-fix and secret-fix profiles. Our 15 mm Performance Profile delivers Accoya’s outstanding performance in a more economical, value-engineered profile.
We supply two varieties of this clean and crisp cladding: standard Accoya and Accoya Color Grey.
All Accoya products come with a 50-year Accoya warranty as standard.
Accoya
Uncoated Accoya is a cream or light straw colour and takes on a silvery-grey appearance when left to weather naturally. Its stability makes Accoya the ultimate surface for factory-coating with opaque or translucent paint: virtually no shelling, cracking, checking or fissuring will occur, and coatings last up to three times longer than on unmodified timber.
We keep a stock of Accoya cladding, making it ideal for projects that need a quick turnaround.
Accoya Color Grey
Accoya Color Grey has a consistent grey colour throughout the board, designed to last for the lifetime of the product. Every single cell is coloured grey. The performance remains the same as with standard Accoya, but this version provides a uniform grey appearance from day one, with no need for coatings or weathering.
Finishes
Learn more about our range of cladding surface finishes; from smooth, planed boards, to textured finishes specifically developed to enhance paint coating performance.
Planed
Planed boards are run through our planing mill to create a smooth, dressed finish.
Brushed
To create this effect, wire brushes are used to pull out the softer spring wood, exposing the harder summer wood, thus accentuating the grain and creating a beautifully textured surface.
Next steps
Downloads
Download Environmental Product Declarations and species factsheet.
Accoya® Downloads
Accoya®
Architects & Specifiers
We offer a range of services to help with specifying our products.
Get a quote
Get in touch with our sales team to discuss your project.
Profile options
View our range of Accoya face-fix and secret-fix profiles, including our 15mm Performance Profile, which offers the same outstanding performance of Accoya at a more affordable price. Accoya and Accoya Color Grey can both be machined to a wide range of cladding profiles to suit different design requirements, with options available in various lengths, including fixed lengths. Please note that the 15mm Performance Profile is available in standard Accoya only.
We offer a limited range of stock profiles, available in select finishes for projects which require a shorter lead time. Please note that additional processes like coatings will extend lead times on these products.
RW119 Performance Profile
Standard widths: 145mm
Standard thickness: 15mm
RW119
Standard widths: 68mm / 95mm / 145mm
Standard thickness: 21mm
RW006
Standard widths: 68mm / 95mm / 145mm
Standard thickness: 20mm
RW014
Standard widths: 68mm / 95mm / 145mm
Standard thickness: 20mm
Square edge as vertical open rainscreen
Standard widths: 68mm / 95mm / 145mm
Standard thickness: 20mm
Coatings
Accoya is the ultimate surface for factory-coating with opaque and translucent paint, or oil. By combining the impressive benefits of factory coating with the incredible stability and durability of Accoya, remarkable results can be achieved. Accoya Color Grey is designed to be used uncoated, with its colour integrated throughout the timber.
Oil
A range of matt finishes which highlight the natural beauty and variation of timber.
Paint
A traditional coloured paint finish in opaque and translucent options.
Recommended fixing systems
How timber is fixed is fundamental to its long-term performance, influencing both its appearance and durability. Each Russwood species, profile and layout combination has a recommended fixing system, with detailed drawings available to help ensure the timber performs and looks its best for years to come. These are the recommended fixings for use with Accoya.
FassadenClip®
Secret fix
An innovative secret-fix solution for open rainscreen cladding
L-GoFix® A2 stainless steel screws
Face fix
Cladding screw for effective fixing and neat detailing
Russwood Battening System
Substructure
Non-toxic, engineer-assessed, method of fixing timber cladding. Circular economy ready.
KompeFix®
Face fix
Compensation strip designed to prevent direct contact between timber elements.
F-BohrFix® ZB screws
Secret fix
Cladding screw for effective fixing and neat detailing
L-BohrFix® A4 Screws
Face fix
A highly corrosion resistant screw for special applications.
Questions?
With so many timber species, dimensions, profiles, coatings and fixing options to choose from, the possibilities are almost endless – which is exactly why pricing isn’t one-size-fits-all. To give you an accurate price, we first need to know more about your project.
Get in touch with our sales team for up-to-date pricing tailored to your specification. We’ll talk through your requirements and guide you to the best solution for your project and budget. To compare our cladding ranges, explore indicative price bands (£–££££) using our Compare Cladding Tool.
Yes, Russwood’s dedicated Specification Team can assist architects with selecting the best timber cladding species, coatings and fixings for their projects, ensuring both the performance and aesthetic requirements are met. We can also assist with writing the H21 (external timber cladding) National Building Specification (NBS). Find out more about the services we offer to architects.
To receive a quotation or to place an order, get in touch with our sales specialists who will be happy to assist.
Physical samples can be ordered by contacting our sales specialists who can assist with selecting the most suitable cladding for your project and send out appropriate samples.
Our handy Cladding Comparison table allows you to compare species information and timber properties at a glance.
We offer UK wide delivery on all of our products. Please contact our sales specialists for a quote.
We can offer Accoya in various lengths from stock, ranging from 2.4 – 4.8m, to suit your project needs. Fixed lengths are available. Please speak to a member of our cladding sales team for more information
Accoya® and Accoya Color Grey offer the same performance benefits, including durability, stability and long service life.
The key difference is appearance. Standard Accoya has a pale, natural tone that will weather over time to silver/grey and is generally supplied factory-coated with opaque or translucent paint.
Accoya Color Grey is pigmented with colour throughout the board, providing a consistent grey appearance from installation without the need for coatings or reliance on natural weathering. Ideal for projects where a consistent grey finish is desired from the outset, without ongoing maintenance or coating requirements.
Expert View
The dimensional stability properties of Accoya® are unrivalled, making it the ideal substrate for low maintenance, decorative paint finishes. Boards display subtle figuring with very few knots, resulting in a clean and contemporary aesthetic. Our RW119 Performance profile makes Accoya® a viable option for a wider scope of projects. With the introduction of Accoya Color Grey, clients can achieve that same high level of performance with a consistent grey finish throughout the board, offering greater flexibility in how the material is used.
News & inspiration
Product Spotlight: Accoya® Color Grey
Discover Accoya® Color Grey for cladding and decking. A durable, low maintenance timber with a consistent grey finish and outstanding stability.
