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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.

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.
Image of Roxana Cercelaru Roxana Cercelaru 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.

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.

RW014

Standard widths: 68mm / 140mm
Standard thickness: 25mm

View profile

Surface 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 brushing

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, meaning you can achieve a consistently weathered look without the wait.
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 Screws

Face fix

Cladding screw for effective fixing and neat detailing.

Learn more

Russwood Battening System

Substructure

Environmentally friendly, engineer-assessed, method of fixing timber cladding.

Learn more

KompeFix®

Face fix

Compensation strip designed to prevent direct contact between timber elements.

Learn more

FassadenClip®

Secret fix

An innovative secret-fix solution for open rainscreen cladding.

Learn more

L-BohrFix® A4 Screws

Face fix

A highly corrosion resistant screw for special applications.

Learn more

Frequently asked questions

How much is Scotlarch® cladding?

Uncoated Scotlarch® cladding starts from £36 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.