曲尺かねじゃく

noun

carpenter's square

An L-shaped metal ruler used by carpenters to measure and check right angles; also called 指矩 (さしがね).

• 大だい工くさんは曲尺かねじゃくを使つかって柱はしらの直ちょっ角かくを確たしかめた。

  The carpenter checked the right angle of the pillar using a carpenter's square.

noun

common shaku (approx. 30.3 cm)

A traditional Japanese unit of length, equal to about 30.3 cm; used in carpentry and construction. Contrasts with 鯨尺 (くじらじゃく), a longer shaku used for cloth.

• この柱はしらの長ながさは曲尺かねじゃくで六ろく尺しゃく三さん寸ずんです。

  The length of this pillar is 6 shaku 3 sun in the common shaku system.