THE WOODS of the cb group
The Woods of the CB Group
Manufacture of glued laminated timber structures
Les Bois du Groupe CB combines technical excellence, family expertise, and sustainable innovation in the service of low-carbon construction.
The "Les Bois du Groupe CB" division continues the Group's historic mission: to transform and enhance the value of materials. It brings together two renowned family businesses: Cosylva and James, experts in glued laminated timber and timber structures. Their complementary strengths enable them to combine technical excellence, innovation, and responsible resource management for sustainable construction.
This sector offers comprehensive solutions, from the production of ready-to-install frames to the complete construction of agricultural, industrial, equestrian, commercial, sports, and cultural buildings, both in France and internationally.
Committed to a low-carbon approach, companies in the sector support their customers with a partnership-based, tailor-made approach. Their expertise in glued laminated timber and their focus on sustainable innovation make them strong, influential players in meeting the growing expectations of responsible construction.
Discover the Bois companies of the CB Group
Cosylva
Cosylva is a family business founded in 1982 and based in Bourganeuf, in the Nouvelle-Aquitaine region. Specializing in the manufacture and cutting of glued laminated timber structures, mainly in French Douglas fir, it has established itself as a recognized player in the sector thanks to its technical expertise, the quality of its support services, and the reliability of its products.
With two PEFC-certified manufacturing sites and an annual capacity of up to 20,000 m³, Cosylva controls its French wood supplies and actively contributes to sustainable forest management. The company works closely with design offices, carpenters, and general contractors, offering comprehensive support ranging from consulting and preliminary studies to custom manufacturing.
Committed to promoting local resources and developing more sustainable construction, Cosylva supports the regional economy while promoting the use of renewable and high-performance materials.
James
James is a family-owned business based in Normandy, founded in 1950 and recognized as one of France's leading players in the field of glued laminated timber structures. With its roots in forestry and sawmilling, the company has evolved to become a benchmark in engineered wood, combining technical expertise, innovation, and quality.
Based in Brécey, in the heart of the Mont-Saint-Michel bay, James designs and manufactures frames and structures for agricultural, equestrian, industrial, and commercial buildings, as well as for sports and cultural facilities. With 19,000 m² of workshops, an integrated design office, a testing laboratory, and robotized production lines, the company controls the entire chain, from the choice of wood to on-site installation.
Its teams, specially trained in large spans and heights, carry out projects in France and internationally. Committed to a strong environmental approach, James uses eco-certified wood and continuously invests in cutting-edge technologies (digital machining, automation, robotization).
With 100 employees, a turnover of more than €20 million, and iconic projects such as Bo Ranch and Haras de Hus, James has established itself as a trusted partner for timber construction projects combining performance, sustainability, and technical expertise.
