A tongue and groove joint is used when working with what material?
Tongue and groove and groove: Tongue-in-groove is similar to tongue and groove, but instead of the tongue forming part of one of the edges, it is a separate, loose piece that fits between two identically grooved edges. The tongue may or may not be of the same material as the grooved pieces joined by the tongue. For example, plywood flooring is commonly grooved at the edges, and plastic tongues are used to form the joint. Tongue and groove Tongue and groove is a method of fitting similar objects together, edge to edge, used mainly with wood, in flooring, parquetry, panelling, and similar constructions.
Tongue and groove dovetail and multiple tongue and groove are used. Each piece has a slot (the "groove") cut all along one edge, and a thin, deep ridge (the "tongue") on the opposite edge. The tongue projects a little less than the depth of the groove. Two or more pieces thus fit together closely. The joint is not normally glued, as shrinkage would then pull the tongue off. In another assembly method, the pieces are end-matched. This method eliminates the need for mitre joints, face nailing, and the use of joints on or centres of conventional framing. For many uses, tongue and groove