Joinery: Shouldered mortise and tenon joint
Below right: Beveled — An attractive and efficient joint that can be used on the main posts and elsewhere throughout the frame.
Below left: Square — This joint is slightly stronger in that it can resist upwards cantilever type thrust sometimes created by a knee brace between the joint and a strong downwards force. In both versions of this joint, the shoulder takes the lion's share of the weight, and the pegged tenon's main job is to hold the girt in place.
