Breadboard Ends: Tenons
Gary Rogowski demonstrates his methods for this traditional yet strong breadboard end.
When I want an option that’s nearly bombproof, I use a series of pinned mortise-and-tenon joints connected by haunches between the tenons. It takes more time, but these ends are on to last.
The tenons, spaced across the width of the panel, provide great strength and allow you to pin the joint. The stub tenon fits in a groove, maintaining the integrity of the breadboard end by reducing how much material is removed. Here the groove is blind to conceal the joint and simplify fitting, but these types of breadboard ends work just as well with a through-groove.