What Is Tongue and Groove Flooring?

- Apr 13, 2020-

Tongue-and-groove flooring is made up of individual boards with special interlocking edges that are hidden once the boards are installed in the finished surface. Each piece has a tongue (a continuous ridge or tab) along one side and one end of the board and a groove (a channel) along the other side edge and end. The grooves of each piece fit over the tongues of the neighboring pieces, locking the pieces together so the boards stay flat and resist movement.