Butt Joint

Definition

A butt joint is a plain square joint between two members.

Purpose

Butt joints are used to join two pieces of material end-to-end, providing a straightforward and efficient way to extend the length of structures or create frames. They are commonly used in woodworking, metalworking, and construction.

Examples of Use

1. Woodworking: Creating frames, boxes, or furniture by joining wooden boards end-to-end.
2. Metalworking: Welding or bolting metal plates or bars together in fabrication projects.
3. Construction: Connecting structural members such as beams or pipes to extend their length or form corners.

Related Terms

• Miter Joint: A joint made by beveling each of two parts to be joined, usually at a 45-degree angle, to form a corner.
• Lap Joint: A joint where the ends of two members overlap.
• Dado Joint: A joint where a slot is cut into one member to receive the end of the other member.

Notes

Butt joints can be strengthened with additional fasteners, adhesives, or reinforcement techniques such as dowels, screws, or plates. Proper alignment and preparation of the surfaces are key to achieving a strong butt joint.