Barry Horowitz became Girl Scouts of the USA's (GSUSA) chief revenue officer in April 2015, after nearly ten years leading its Girl Scout Merchandise team, which is responsible for product development, wholesale and retail distribution, marketing, and licensing of Girl Scout uniforms and branded products.
2-1/2 feet x 5 feet is the standard bath tub size. 32 inches x 32 inches is the typical size of shower stalls. 2-foot depth is standard for actual space for clothes along a closet wall. 3-foot hallways are standard inside a home. 2-foot deep cabinets in the bathroom are standard. 32-inch doorways are ideal.
Go for the first stall. People tend to use the middle and back stalls of the bathroom for a bit of privacy, so go for the first stall to limit your exposure to bacteria and germs. It will likely be less used and cleaner than the other stalls in the bathroom. Do not put your belongings on the bathroom floor.