NORclad Siberian Larch Timber Cladding

Siberian Larch timber cladding is a durable specie with the sapwood omitted. It is a slow grown high density, softwood with a colour that ranges from a light straw yellow to a gold/brown in the heartwood area.

Siberian larch is one of the most durable species of coniferous softwood and comes from Siberia in Russia. It is one of the hardest and strongest commercial softwoods, excellent machining properties, though knots may be troublesome, and is suitable for many end uses from external joinery and cladding applications, areas of potential high impact damage such as schools, shops to boat planking.

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FURTHER INFORMATION

All grading information is given as guidance, to meet the criteria set through CE marking, quality and grading requirements.

All products we machine in house are selected after machining and before final packaging. For further details on the grade, please contact us, likewise we are more than happy to work with you to create grading criteria bespoke to your project. Products can be supplied as FSC® and/ or PEFC® certified timber.

We also offer further information on Siberian Larch with coatings; Sioo or Euro Class B Fire Treatment.

Detailed Species Information

Wood Type: Softwood.

Origin: Russia

Sustainability: Sourced from well managed forests – FSC® certified.

Availability: Sawn and planed products in a wide range of thicknesses, widths and profiled patterns.

Colour: Varies from pale yellow to Orange to Golden Brown.

Quality: NORclad typically offer Siberian Larch in A, or B Grade

Typical end uses: Joinery and Cladding.

Durability: Durable.

Density: 590-650 kg per m3 at 14% moisture content.

Dimensional stability: It has a tendency to distort when wet or not dried, but once dry, is generally stable.

Fixings: Stainless steel fixings are always recommended.

Strength & Working properties: It is one of the hardest and strongest commercial softwoods available, with only Pitch Pine generally stronger. It can be sawn and machined well however it can split on nailing so pilot drilling of fixing holes is recommended particularly at board ends.

Typical Section Sizes: Ex 25, 32, 50, 75mm x 25, 50, 75, 100, 125, 150, 175mm

Typical Lengths: 2.4m – 4.0m

Grades Available

Siberian Larch timber cladding will colour down if it is not protected as soon as installation is complete with a good quality semi or fully translucent UV-radiation protective coating. It also comes in two different quality grades:

Siberian Larch A

FSC Certified, sustainably sourced Timber
Imported from Russia
All timber is sourced and machined to CE Quality Grading Requirements
Kiln Dried to 14-20% Moisture content
Typically 4.0m lengths
Max live knot diameter: 25mm as per grading rules I-III (unsorted) GOST 26002-83

Siberian Larch B

FSC Certified, sustainably sourced Timber
Imported from Russia
All timber is sourced and machined to CE Quality Grading Requirements
Kiln Dried to 14-20% Moisture content
Typically 4.0m lengths
Max live knot diameter: 40mm as per grading rules I-IV (sawfalling) GOST 26002-83