Mats, reformers and class types to count first
Count the mats your room genuinely takes and the reformers that are in working order. Write down the class types with their length, level and usual room, and the weekly timetable you want to publish. Add the teachers with the days they teach and the weeks they are away, and decide who may cover whom. Decide how late a client may cancel, how your class passes work and whether each class keeps a waiting list. Then publish a single week, watch what reception has to fix, and publish the rest of the term.
What Base does not do for a studio
Said plainly, so nobody discovers it after the term has started.