Chen Collection, Middle Volume Radical: Tree (mù) 椽 Kangxi strokes: 13 Page 538, Entry 05 Pronounced chuan. According to the Explaining Graphs and Analyzing Characters (Shuowen), it refers to a rafter. According to the Broad Rhymes (Guangyun), it is the corner of a roof. According to the Commentary on the Explanation of Dwellings in the Literary Expositor (Erya), rafters are called jue in the states of Qi and Lu, and are called cui by the people of Zhou. In the Zuo Commentary (Zuo Zhuan), in the fourteenth year of Duke Huan, it is written that the state of Song brought back the rafters of the Great Palace to use as rafters for the Lu Gate. The commentary notes that round ones are called chuan, and square ones are called jue. In the Treatise on Literature and Arts in the History of the Former Han (Qian Han), it is written that the hut had thatched roofs and rafters. Also pronounced chuan (falling tone). The meaning is the same.