RW102
Scotlarch®
Planed
Uncoated
Scottish Larch cladding
Scotlarch®
Supplied using locally sourced, heartwood of Scottish Larch, Russwood’s Scotlarch® is a sustainable, durable and cost-effective cladding solution. Frequent knots give Scotlarch® a characterful appearance which is perfectly suited to more rustic and traditional aesthetics in ‘board on board’ and other simple arrangements.
At a glance
Species
Scottish Larch
Origin
Scotland
Modified timber
No
Grade
Sorted and regraded in-house, ensuring that all boards are sapwood free on exposed faces for enhanced durability.
Weathering
In ideal conditions, Scotlarch® will weather to a muted shade of silver/grey.
Sustainability
Sustainably sourced from well managed forests, within around 100 miles of our Highland sawmill. FSC®-certified.
SiOO:X coating
Can be factory coated in SiOO:X original or pigmented versions, to achieve a weathered look at an accelerated rate.
Durability
Naturally durable (Class 3 BS EN 350-2).
Paint coating
We do not recommend painting Scotlarch.
Appearance
Warm mix of colours ranging from pale orange to reddish brown. Frequent knots demonstrate its natural origins and provide a characterful, rugged appearance.
Density
Medium - classified by BS EN 350-2 as approximately 556 Kg/m³ at a moisture content of approximately 18%.
Fire retardant coating
Can be treated with fire retardant.
Application
Suits designs aiming for a more rustic and traditional aesthetic in ‘board on board’ and other simple arrangements.
Stability
Moderate stability. Air-drying to approximately 16-18% allows optimum stability, as the timber is not subject to the stresses of kiln drying.
Surface finishes
Can be produced in a planed, skimmed or wire brushed finish.
See how Scotlarch® compares with other species
Expert View
Scotlarch® is a robust, home-grown species that offers a durable and economic solution for projects striving for low carbon footprint. Locally sourced in Scotland, it has the knots and figuring ideal to deliver that natural aesthetic.Roxana Cercelaru Senior Architectural Liaison Technician
Virtual samples
Browse and compare virtual Scotlarch® samples from the comfort of your home or office; the quickest and most sustainable way to view our range of samples. Click on the 3D icon and tilt or zoom to view the texture, grain and colour of the boards or use the highlight feature to see how light and shade affect the aesthetic.
RW102
Scotlarch®
Wire Brushed
Uncoated
RW014
Scotlarch®
Planed
Uncoated
Board on Board
Scotlarch®
Skimmed
Uncoated
Open Rainscreen
Scotlarch®
Skimmed
Factory Coated SiOO:X Original
Board on Board
Scotlarch®
Skimmed
SiOO:X Mid Grey
Profile options
Scotlarch® is best suited to board on board and other simple arrangements. It can be produced in the following face-fix and secret-fix profiles.
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.
RW014
Standard widths: 66mm / 140mm
Standard thickness: 25mm
RW102
Standard widths: 140 mm
Standard thickness: 25mm
Board on Board A
View profile
Board on Board B
Narrow Front
View profile
Board on Board B
Narrow Rear
View profile
Board on Board Lapped
View profile
Square edge as vertical open rainscreen
View profileSurface finishes
Learn more about our range of cladding surface finishes; from smooth, planed boards, to textured finishes specifically developed to enhance SiOO:X coating performance.
Planed
Planed boards are run through our planing mill to create a smooth, dressed finish.
Learn more
Skimmed
Skimming the face of each board provides a clean, unblemished fine-sawn finish.
Learn more
Wire brushed
Wire brushing accentuates the grain and creates a beautifully textured surface.
Learn more
Coated options
Scotlarch® is suitable for factory coating in SiOO:X Original, Light Grey or Mid Grey, which creates a weathered appearance at an accelerated rate.
SiOO:X
SiOO:X Wood Protection eliminates differential weathering and provides a consistently weathered tone.
Learn more
Recommended fixings
How timber is fixed is fundamental to its long-term performance in terms of both appearance and durability. These are the recommended fixings for use with Scotlarch®.
L-GoFix® A2 stainless steel screws
Face fix
Cladding screw for effective fixing and neat detailing.
Learn moreRusswood Battening System
Substructure
Non-toxic, engineer-assessed, method of fixing timber cladding. Circular economy ready.
Learn moreKompeFix®
Face fix
Compensation strip designed to prevent direct contact between timber elements.
Learn moreFassadenClip®
Secret fix
An innovative secret-fix solution for open rainscreen cladding.
Learn moreL-BohrFix® A4 Screws
Face fix
A highly corrosion resistant screw for special applications.
Learn moreFrequently asked questions
How much is Scotlarch® cladding?
Uncoated Scotlarch® cladding starts from £26 per m² excluding VAT. Prices are based on a minimum quantity of 50 m² and coatings add an additional cost of approximately £20-25 per m². Prices are subject to change due to the fluctuating prices of timber and should be used as a guide only. For the most up-to-date prices please contact our sales team.
Can you help with NBS Specification?
Yes, Russwood’s dedicated Architect Liaison 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.
How do I order Scotlarch® cladding?
To receive a quotation or place an order, get in touch with our Technical Sales Team who will be happy to assist.
Can I order a sample of Scotlarch® cladding?
The quickest way and most sustainable way to view cladding samples is to browse our range of Virtual 3D Samples. Physical samples can be ordered by contacting our sales team who can assist with selecting the most suitable cladding for your project and send out appropriate samples.
How does Scotlarch compare to other timber species?
Our handy Cladding Comparison table allows you to compare species information and timber properties at a glance.
Where do you deliver to?
We offer UK wide delivery on all of our products. Please contact our sales team for a quote.
Langdale in Brampton, Cumbria
Langdale, an award-winning, low-carbon home in Cumbria by Mary Arnold-Forster Architects, marries its rural location with modern design >>
Read more