Finger Joint

Definition

A Finger Joint is a glued end connection between two pieces of wood, using an interlocking pattern of deeply cut "fingers." This joint creates a large surface area for the glue bond, allowing it to develop the full tensile strength of the wood it connects.

Purpose

The purpose of a Finger Joint is to create a strong, durable connection between two pieces of wood, often used to extend the length of lumber or to join smaller pieces into larger panels.

Examples of Use

• Furniture Making: Joining pieces of wood to create longer boards or panels.
• Construction: Extending the length of framing lumber without compromising strength.
• Millwork: Producing moldings and trim with consistent length and quality.

Related Terms

• Mortise and Tenon: A traditional woodworking joint involving a protruding tenon fitting into a corresponding mortise.
• Dovetail Joint: A woodworking joint used for joining two flat pieces of wood at right angles.
• Glue: An adhesive substance used to bond wood pieces together.

Notes

• Finger joints provide a strong and aesthetically pleasing joint that is often stronger than the original wood.
• Proper alignment and gluing techniques are crucial for the effectiveness of finger joints.