Type 3 construction features which type of material for its walls?

Type 3 construction, often referred to as "ordinary construction," commonly features walls made primarily of wood. This type of construction integrates both combustible and non-combustible materials, but wood is the main component used for the structural framing, walls, and sometimes the roof. The main characteristic of Type 3 construction is that the exterior walls are primarily composed of non-combustible materials, while the interior is largely made up of combustible materials like wood.

Understanding this helps firefighters assess the fire behavior and potential hazards of a building during emergency situations. Structures with wood walls can allow for rapid fire spread compared to those built with non-combustible materials, making knowledge of construction types critical for effective firefighting strategies.