In researching the original Noma Dōjō I came across two terms that are useful in understanding the elements of a dōjō. They are:
Jōdan’noma (上段の間) – this is a slightly raised seating area (seiza/kneeling style) at the shōmen or jōseki end, usually with a tatami floor. In the case of both the new and original Noma Dōjō, this was at the north/jōseki end of the hall. A tokonoma may or may not be found within this.
Hikaenoma (控えの間) – this is the proper term for the reserve area off the keikojō/embujō where people can ready themselves, wait for keiko, sit and watch, etc. In the previous post about a basic dōjō layout I had called this the “perimeter/shūi/周囲” for lack of knowing what it should be called. Hikaenoma is also a term used in sports for the player’s seating area, which in English would be called the “bench” or “bullpen” (in the case of baseball). The original Noma Dojo had significant hikaenoma area while the new Noma Dojo has narrow hikaenoma in between the concrete columns on the shimoza side.