Shiguchi

鎌継ぎ

A sickle-shaped lap joint that locks beams together with graceful compression, favoring tea house transoms.

渡り顎

A passing jaw joint that threads columns and beams together with offset shoulders for anti-racking strength.

目違い継ぎ

Cross-lapped joint locking two beams at right angles with interlocking tongues and grooves.

ほぞ継ぎ

The classic mortise and tenon joint, essential for frame construction and corner assemblies.

差し栓

A simple half-lap joint where two members meet at right angles, removing half the material from each piece.

貫

A horizontal beam that passes completely through vertical posts, secured by mortise-and-tenon without nails or metal.

突き打ち輪

A blind or stopped mortise joint for flush surfaces where the tenon does not pass through.