What is another name for Type III construction, commonly used in various buildings?

Type III construction is more commonly referred to as Ordinary construction. This classification involves buildings that have exterior walls made of non-combustible materials but are constructed using structural elements that may be combustible, such as wood. In this type of construction, the structure's frame and floors can significantly impact how a fire spreads.

Ordinary construction is frequently seen in commercial buildings and is designed to withstand a variety of environmental forces while still providing a certain degree of fire resistance on the exterior. This understanding of Type III construction is crucial for fire fighters, as it influences strategic firefighting operations—not only in tactics but also in predicting fire behavior within such structures.

Other types of construction listed include Heavy timber, which is characterized by large wooden beams and posts, and Steel frame construction, known for its non-combustible, metal framework. Wood frame construction, while also typically combustible, does not fit the definition of Type III construction because it does not necessarily have the non-combustible exterior that defines Ordinary construction.