carpenter's square

Right-angled carpenter's square (ju), consists of a vertical bamboo strip and a horizontal wooden beam of 1 traditional Chinese foot (chi) long, divided into 10 Chinese inches (cun), marked in black ink on bone attached at frontal side. This tool was used by Chinese carpenters to mark a right angle or a square and to check the accuracy of a 90-degree corner.

Collection Information

These objects are only a part of our collections, of which there are more than 350,000 objects. This information comes from our collections database. Some of this is incomplete and there may be errors. This part of the website is also still under construction, so there may be some fields repeated or incorrectly formatted information.

The database sometimes uses language taken from historical documents to help research, which may now appear outdated and even offensive. The database also includes information on objects that are considered secret or sacred by some communities.

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