The main room (zashiki, a room or place floored with tatami mats) consisted of toko and chigaidana (set of staggered shelves) in front, tsukeshoin or hirashoin (one type of window used in a shoin style room) on the side of veranda, and chodaigamae (a built-in ornamental doorway found in the raised area of a formal style reception suite) on the opposite side.
主室（座敷）の構成は、正面に床と違棚を設け、縁側寄りに付書院または平書院を設け、反対側に帳台構を造った。