What is a gusset plate?

• A. A piece of metal or plywood used to reinforce a joint of a truss
• B. A type of drywall patch
• C. A wooden support brace
• D. A metal plate for wall reinforcement

Answer: (D)

A gusset plate is a flat plate used to tie together joints where structural members meet, transferring loads between them. Its primary role is reinforcing the connection, especially at truss joints or braced-wall attachments, by providing a solid surface where bolts or nails can secure the members and share forces.

That’s why describing a gusset plate as a metal plate for wall reinforcement fits: it highlights the plate’s function of strengthening a connection in the wall or framing, rather than being just a patch, a brace, or a patch of plywood. The other options describe different items (a drywall patch, a wooden brace) or mix materials in a way that doesn’t reflect the plate’s typical reinforcing role.