Lexicon DIY-Knowledge

Tongue and groove systems

Nut- und Federsysteme

Sistemas de ranuras y resortes

Systèmes de rainure et languette

There are two types of tongue and groove joints.
Boards with alternately milled tongues
Joints with separate tongues whereby the tongue is loosely inserted as a joining element between the grooved boards, the so-called groove-groove joint.
The joining of elements with a tongue and groove system has the effect of enlarging the glued surface which ensures that the joint on the workpiece is more stable.
As a mere plug-in system, tongue and groove joints have the advantage that edges cannot be damaged when they are put together and that they can be nailed together invisibly.