Which door type is described as lightweight with interior spacers separating the face panels rather than solid material?

• A. Glue-Laminated Beam
• B. Means of Egress
• C. Hollow-core door
• D. Manufactured Home

Answer: (C)

Hollow-core doors are built with two thin face panels and an interior hollow cavity created by spacers or a lattice, not a solid block. This makes the door lightweight and inexpensive, since most of the interior is air rather than solid material. The interior spacers separate the face panels to form the hollow core, which matches the description provided. In contrast, solid-core doors are dense and heavy because they’re filled with solid material throughout, which is not what’s described here.