Kanawa Tsugi
A scarf joint reinforced with a metal collar to resist bending and seismic stress. Revered in temple restoration.
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Joint profile
Watari Ago 渡り顎
A passing jaw joint that threads columns and beams together with offset shoulders for anti-racking strength.
Assembly insights
Watari Ago's stepped tenon and haunch combination prevents twisting under dynamic loads, making it a hallmark of shrine galleries exposed to the elements.
Applications
- Temple verandas
- Covered walkways
- Bridges