Compare wood species for cladding

Cladding Northern spruce Siberian larch Thermo pine Thermo radiata pine Thermo ash
Timber Northern spruce Siberian larch Scots pine Radiata pine American ash
Latin name Picea abies Larix sibirica Pinus sylvestris Pinus radiata Fraxinus americana
Growth area North Europe Northern Russia North Europe Finland, New Zealand North America, Europe
Durability (EN350-2) Class 3 Class 3 Class 2 Class 1-2 Class 1
Avg. density (kg/m3) Medium, ~450 High, ~610 Medium, ~420 Medium, ~480 High, ~660
Movement class Medium High* Very low Very low Very low
Environmental certified Yes Yes Yes Yes Yes
Process None None Heat treatment, Thermo-D Heat treatment, Thermo-D Heat treatment, Thermo-D
Covering required Yes No No No No
Appearance** Light color, many knots Golden orange color, tight grain, many knots Light brown color, many knots Brown color, very few knots Dark brown color, tight grain, very few knots
Lenght (m) 2.1-6.0 m 3.0-6.0 m 2.1-6.0 m 2.1-6.0 m 0.9-4.2 m
Average price

*  The movement class of Siberian larch wood is high (145 mm wide cladding can vary 5 mm through the seasons).

** Appearance of wood before weathering.

Cladding can be produced from different types of wood (Northern spruce , Siberian larch , Thermowood). Timber cladding made of Thermowood and Siberian larch is ready for installation and maintenance-free. Northern spruce cladding must be impregnated or painted. Thermo ash wood and thermo radiata pine (clear pine) are without knots.
Compare wood types for cladding and choose the one that suits you best.
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