Interior Design Implementation (IDIX) 2 Practice Exam

For metal doors, which materials can be used?

Steel or hollow metal, or aluminum (typically glazed) Wood FRP Hardened clay

Correct Answer:

Steel or hollow metal, or aluminum (typically glazed)

Explanation:

Metal doors are typically built from steel or hollow metal, and aluminum is also used, usually with glazing. Steel or hollow metal doors provide strength, security, and fire resistance, making them common for both interior and exterior applications. Aluminum doors are lighter and corrosion-resistant, and they’re often paired with glazing panels to allow visibility and light. Other materials like wood, FRP (fiberglass-reinforced polymer), or hardened clay are not metal doors, since they belong to different material families or construction methods.

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