This paper is a study on the chief carpenters ("Toryo") who were controlled by MASAKIYO NAKAI. He was the founder of NAKAI family. From 17th century to the middle of 19th century, NAKAI family were in a position of "Daikugashira" of Edo shogunate. The main subject in this paper is following four points, (1) the earliest example of carpenter who called "Toryo", (2) "Toryo" sometimes written "kimoiri", (3) relation between "Toryo" and carpenters (4) native places of "Toryo".