Which statement best defines a rabbet joint and identifies a typical cabinet application?

• A. A recess along the edge for mating panels; often used to join a back panel to a carcass or to create a resting surface for a shelf.
• B. A mitered corner used to join two pieces without a rabbet.
• C. A channel cut into the edge to guide a sliding panel.
• D. A lap joint created by overlapping pieces with nails.

Answer: (A)

A rabbet joint is defined by a recess cut along the edge of a board to accept another piece, giving a seat for that piece to fit flush and square. In cabinet making, this recess is typically used to insert a back panel into the carcass, which creates a clean, strong joint and keeps the back panel aligned and hidden within the case. The same edge recess can also provide a resting surface for a shelf, giving the shelf a ledge to sit on and helping with proper alignment. The other descriptions describe different features—an angled miter corner isn’t a rabbet, a channel for a sliding panel is a groove, and a lap joint is overlapping pieces fastened together—so they don’t match the defining idea of a rabbet joint.