Fig. 595.
Fig. 596.
In the mortising just shown, there are only two shoulders where the tenon begins—that is, the tenon is made by only four cuts. This is good for all common or rough work. In nice work a shoulder is also cut at each edge of the tenon (Fig. 595). This makes a neater-looking joint, as these shoulders cover the ends of the mortise completely. When the joint comes at the end of the mortise-piece, the tenon can extend to the edge on the outside and the mortise be cut clear out to the end, forming an open mortise-and-tenon joint (Fig. 543), or a wide shoulder can be left on the outside of the tenon—the tenon itself being made narrower (Fig. 596). This course is adopted in doors and frames of various kinds (see Fig. 334).
Fig. 597.
Fig. 598.
