Larch Sold in the UK, Delivery in 7 Days
Larch is a dense, resin-rich timber from cold climates which offers natural rot resistance, stability, and low maintenance. Its golden hue weathers to silver-grey, appealing to designers. Sustainably sourced and cost-effective, it rivals hardwoods for durability and aesthetics, making it a popular, eco-friendly choice for exterior cladding.
Our product is A-grade quality. Moisture content 16-18%, product is designed to make fencing screens and cladding.
Available sizes:
– 20 x 45 x 2000
– 20 x 45 x 4000
– Other size upon request
Siberian Larch Specs
Origin
Siberian larch (Larix sibirica) grows in central and eastern Siberia, northern Mongolia, the Altai Mountains of Kazakhstan, and parts of northeastern China. It thrives in cold, continental climates with harsh winters and short summers, often in taiga forests, tolerating poor soils and permafrost.
Properties
It has a density of 590–650 kg/m³, high bending strength (~90–100 MPa), and good dimensional stability (radial shrinkage 3–4%, tangential 6–8%). Naturally resistant to decay and insects (EN 350 Class 3–4), it weathers to a silver-gray if left untreated and resists moisture uptake. Thermal conductivity is ~0.13–0.15 W/m·K, and it offers decent acoustic absorption.
Usage
Common uses include exterior cladding, decking, window frames, structural beams, fencing, and flooring. Key advantages are durability without treatment, attractive color, stability when dried, and sustainable supply. Drawbacks include potential surface checking, resin bleed, harder machining than pine/spruce, and occasional twisting if improperly dried or stored.
Endurance
Siberian larch is one of the most durable softwoods for exterior use, valued for its density, resin content, and natural decay resistance.
Lifespan: 30–50 years untreated; 50+ years with maintenance.
Weathers to silver-gray in 1–3 years if left untreated, without loss of strength.
Comparison: Outperforms many softwoods in stability and hardness.