Shower heads are located at a standard height of 80” (203 cm), but can be set at a minimum height of 72” (183 cm) if desired. Shower controls should be placed at a height 40”-50” (102-127 cm) above the shower floor and out of direct line of the water path to avoid being caught in extremely cold or hot water when operating. For safety, horizontal shower grab bars should be installed 33”-36” (84-91 cm) above the floor. Shower sizes vary considerably based on the floor plan, but comfortable minimal showers are commonly 42” x 36” (107 cm x 91 cm) with the flexibility to incorporate a (12” | 31 cm) seat. Shower ceilings can vary in height from 84”-120” (213-305 cm) above the floor.