Slide 1
Shaped wooden surfaces can hold pieces together
A wooden joint connects pieces through shaped, fitted surfaces. Japanese carpentry preserves many ways of making these connections.
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The Takenaka Carpentry Tools Museum exhibits named joints, including kanawa-tsugi. A particular joint is a designed connection, not evidence that every timber building uses no metal.
Slide 2
A joint must suit the wood as well as the shape
Making such a connection requires attention to the wood itself. The outline alone does not tell a carpenter how to make and fit the pieces.
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The museum presents timber selection and craft processes together. A drawing of an outline leaves out the practical knowledge needed to make and fit the pieces.
Slide 3
Different connections need different joint forms
Different joint forms solve different connection problems. Their performance cannot be reduced to one universal rule.
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The museum distinguishes tsugite, which join timbers lengthwise, from shiguchi, which connect them at an angle. The direction of a connection is part of choosing its form.
Slide 4
The finished joint can hide the skill behind it
Once the pieces are fitted, the connection can conceal the work and knowledge needed to make it. Models and demonstrations can reveal those hidden stages.
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Models and demonstrations expose stages that a completed building hides. This is why craft museums preserve processes and tools alongside finished objects.
Slide 5
Keeping buildings repairable also means keeping skills
Repairable wooden architecture depends on people who can maintain and pass on these skills. Preserving the building also means sustaining that knowledge.
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UNESCO describes conservation as a combination of traditional techniques and training. Preserving a building therefore also involves sustaining knowledge across generations.
Sources
- Plants and Crafts in the Cycles of Life
Takenaka Carpentry Tools Museum
- Traditional skills, techniques and knowledge for wooden architecture in Japan
UNESCO
- KIGUMI: Revealing the Carpentry Behind the Wood Joint
Takenaka Carpentry Tools Museum