42 Custom design of prefabricated beams, headers, columns, floors and walls made of wood, lumber and engineered wood products, namely, prefabricated wood I-joists, glued-laminated timber (glulam), cross-laminated timber (CLT), oriented strand board (OSB), rim board, laminated veneer lumber (LVL) and trusses; Design of engineered wood products, namely, prefabricated wood I-joists, glued laminated timber (glulam), cross-laminated timber (CLT), oriented strand board (OSB), rim board, laminated veneer lumber (LVL) and trusses; Design of engineered wood and timber structures, and turnkey timber structures for the construction industry; Technical services, namely, engineering and designing of wood structure construction works and providing technical advice regarding same; Technical services, namely, engineering, computer analysis, and design of wood components and structures, and technical support in the nature of technical advice to architects, engineers, designers, clients, and distributors related to the design of wood components; Computer-aided design, analysis, modeling of wood structure construction works, namely, prefabricated beams, headers, columns, floors and walls made of wood, lumber and engineered wood products, namely, prefabricated wood I-joists, glued-laminated timber (glulam), cross-laminated timber (CLT), oriented strand board (OSB), rim board, laminated veneer lumber (LVL) and trusses; Pre-design of engineered wood and timber structures, design of wood structures and connections, and computer-aided design of timber constructions