What is the classification of tenon-mortise connection in furniture making?

The doors and windows of wooden furniture are also connected by tenons and mortises. In furniture manufacturing, sometimes the tenon is bright, and sometimes the tenon is dark. If the tenons are connected back and forth and the tenons are exposed, they are called open tenons; On the other hand, if the mortise is not open and the tenon is not exposed after the tenon is inserted into the mortise, it is called a hidden tenon. The big wooden components of ancient buildings are also different parts at the joints, either with open tenons or with hidden tenons. Sometimes, on the stigma of a corner column, the forehead tenon also extends out of the column to strengthen the joint connection, which is called tenon.

In furniture making, there are middle tenons and half tenons. There are tenon shoulders on both sides of the tenon, which is called middle tenon; If the thickness of the tenon component is not enough, only one tenon shoulder is made, which is called half tenon. Most of the large wooden members in ancient buildings are connected by tenon method at the joints.