Joinery is a part of woodworking that involves joining together pieces of wood, to create furniture, structures, toys, and other items. Some wood joints employ fasteners, bindings, or adhesives, while others use only wood elements. The characteristics of wooden joints - strength, flexibility, toughness,appearance, etc. - derive from the properties of the joining materials and from how they are used in the joints. Therefore, different joinery techniques are used to meet differing requirements. For example, the joinery used to build a house is different from that used to make puzzle toys, although some concepts overlap.

Pocket-Hole Joinery being used in a simple butt joint.

Detail of brace Mortise and tenon joints in a hand-hewn Timberframe.

A worker uses a mortising machine to shape Timber framing joints

A worker uses a large circular saw to cut joints.