jūhozo  重ほぞ

Keywords
Architecture
Joints

Also called kasanehozo 重ねほぞ; also ryōhozo 両ほぞ. Lit. a stacked tenon. A tenon with a 2-stepped broad base ōnehozo 大根ほぞ and a relatively slender, long, extended piece, cut from the original block of wood. The small vertical extension is called a haunch tenon *konehozo 小根ほぞ. When this tenon is inserted into a mortise, it is referred to as rabbeted. It is used to join the tops of the pillars to transverse beams and purlins. The name ryōhozo is derived from the two steps extending on opposites sides of the haunch.