How big is the restroom/locker room/changing room in your facility, in relation to your facility?
I am opening a larger facility to accomidate the growing participation at Hard Corps (business brand) and have found a great new location. Its big and open and tall so, for me, its perfect... except for the bathrooms. There are two with single toilet and sink but no shower area. There are spare rooms that I could make into his/hers locker rooms but I haven't decided the necessity yet.
Plus it will be a good investment to let your facility grow into if you expand and start bringing in excessive members
All gyms I attend have at least 10 showers (each locker room) a family changing area, too many lockers to count and other amenities like hair dryers, lotion, q tips, and soap dispensers in the shower areas.
Good luck with you gym!