Sawn timber beam made from Siberian larch — a massive structural lumber for critical load-bearing structures in harsh operating conditions. Cross-sections: 100×100, 100×150, 150×150, 150×200, 200×200 mm. Length 3–6 m. Larch timber surpasses pine in strength by 30–40% and in rot resistance by 2–3 times. Durability in contact with water and soil — over 100 years without antiseptic treatment. Applications: bottom log house crown, foundation sills, pile structures, bridge supports, retaining walls, landscape architecture. Kiln drying 10–12%. GOST 8486-86. Export documentation: phytosanitary certificate, certificate of origin. Packaging: packs on spacers, strapped with tape. Shipment: railway platforms, containers, road transport. Minimum order from 20 m³. Lumber.