Siberian Larch Timber Cladding Heartwood Selected SertiWOOD®

Siberian Larch Timber Cladding Heartwood Selected SertiWOOD®

Timber Focus Ltd

Suitable for internal and external use, the Siberian Larch cladding is sourced directly from Russia and comes in range of colours and is available in a wide range of profiles.

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The durable Timber Focus Siberian Larch range is perfect for both internal and external cladding projects and has been sourced directly from the Siberian region of Russia. Selected for its durability, the range is available in wide range of profiles including Tongue and Groove, Rainscreen, Rhombus, Weatherboarding, Board on Board, Half Lap,Shadow Gap, Microline and Shiplap.

The Siberian Larch range can be supplied as pre-aged with a non-toxic treatment to provide customers with the old, weathered silvery grey colour and requires little to no maintenance treatment. Fire retardant to Euro Class B, the range is also available in a factory finished colour of your choice as well as in an opaque paint finish, blackened charred effect as well as in Scottish Scots or British Larch timber.

Full of character, each section features tight knots and visible grain and is fully FSC certified as well as meeting all necessary UK and European cladding regulations.

Timber Focus cladding can be supplied fire retardant treated to Euro Class B or C according to the standard EN13501-1.

General information


Brushed, Smooth, Planed Fine Sawn, Textured, Microrifiled, Rough Sawn

EN13501-1, Euroclass B-s1-d0 (s1 Smoke Production – d0 Flaming Droplets)BS EN 13823 & BS EN 11925-2 Single Burning Item Equivalent to “Class O” BS 476: Part 6 & BS 476: Part 7 request fire certificate


Yellow brown, light brown, reddish brown

Pale Brown, Golden Brown, Dark Brown

Various RAL NCS or Special Wood Stains or Colours


Durable, non-toxic to suit various environments, easy to work with

Enhanced Fire Performance



Timber, Wood


4000 x 148 mm

18 x 6000 x 145 mm

18 x 4000 x 146 mm


25 years

Timber Focus Cladding quality inspection assurance.Minimum 25 years above ground

Minimum 25 years above ground Timber Focus Cladding quality inspection assurance

Uniclass 2015

Pr_25_71_97_84 Softwood weatherboardsPrimary
Digital objects
PlatformCompatibleVersionCertified to
- 1 2.1
- 1 2.1
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