Which joint term describes interlocking pieces such as finger joints?

Which joint term describes interlocking pieces such as finger joints?

• A. Dovetail
• B. Mortise
• C. Finger
• D. Lap

Answer: (C)

This question is about how interlocking joints are named when pieces fit together with a comb-like pattern. The interlocking pattern described—where a series of rectangular fingers on the ends of the pieces fit into matching slots and are glued to form a strong joint—is known as a finger joint. This design maximizes glue surface and helps align the pieces, making it ideal for joining boards end-to-end to create longer stock or strong corners in cabinetry and boxes. Dovetail, while also an interlocking pattern, uses angled pins and tails and is common in drawer construction for resisting pulling apart. A mortise-and-tenon joint relies on a hollowed mortise that receives a projecting tenon. A lap joint overlaps one piece over another without interlocking fingers. So the finger joint is the pattern described, commonly used to create strong, stable connections with lots of glue area.

This question is about how interlocking joints are named when pieces fit together with a comb-like pattern. The interlocking pattern described—where a series of rectangular fingers on the ends of the pieces fit into matching slots and are glued to form a strong joint—is known as a finger joint. This design maximizes glue surface and helps align the pieces, making it ideal for joining boards end-to-end to create longer stock or strong corners in cabinetry and boxes.

Dovetail, while also an interlocking pattern, uses angled pins and tails and is common in drawer construction for resisting pulling apart. A mortise-and-tenon joint relies on a hollowed mortise that receives a projecting tenon. A lap joint overlaps one piece over another without interlocking fingers. So the finger joint is the pattern described, commonly used to create strong, stable connections with lots of glue area.