A large 12 mat size room consisting of a nine tatami mat size area (including a single tatami mat for the host), a three tatami mat size area for companions to the guest of honor and a single bay width alcove.
九畳（手前座一畳を含む）と三畳の相伴席（しょうばんせき）からなる十二畳の広間の茶席で、一間幅の床（とこ）を設ける。