Which construction type features exterior walls and structural members noncombustible or limited, with interior framing of wood?

• A. Type 3
• B. Type 4
• C. Type 5
• D. Type 2

Answer: (A)

The key idea is how construction types classify materials used for exterior walls, structural members, and interior framing. Type III, often called ordinary construction, uses noncombustible exterior walls (such as brick or masonry) with interior wood framing. This combination means the outer shell is resistant to flame spread, while the interior framework is combustible, influencing fire behavior and protection needs inside the building. That matches the description of exterior walls and structural members being noncombustible or limited, while interior framing is wood. Other types either require noncombustible interior framing (Type II), use heavy timber for the main interior structure (Type IV), rely on all wood or combustibles (Type V), or use a fully fire-resistive, protected system (Type I).