2 sentences for 矩 (jǔ)

1. 匠人用矩来校准直角。

   jiàng​rén yòng jǔ lái jiào​zhǔn zhí​jiǎo.

   The craftsman used a square to calibrate the right angles.

   Source: Dong Chinese Dictionary

2. 工匠把木料矩成合适的尺寸，准备开始制作桌子。

   gōng​jiàng bǎ mù​liào jǔ chéng hé​shì de chǐ​cun, zhǔn​bèi kāi​shǐ zhì​zuò zhuō​zi.

   The craftsman cut the wood to the proper dimensions in preparation for making the table.

   Source: Dong Chinese Dictionary