This lecture covers the essential aspects of wood as a construction material, focusing on its properties, types, and applications in building technology. The instructor discusses the importance of understanding the dimensions and characteristics of wood, including standard sections and the differences between softwoods and hardwoods. Various wood types, such as spruce and oak, are examined, highlighting their uses in construction and furniture. The lecture also addresses the processing of wood, including techniques like gluing and lamination, which enhance its structural capabilities. Additionally, the instructor explains the significance of moisture content and its effects on wood behavior, including shrinkage and swelling. The discussion extends to engineered wood products, such as plywood and MDF, emphasizing their advantages in modern construction. The lecture concludes with a look at surface treatments and protective measures for wood, ensuring durability and aesthetic appeal in architectural applications.