This work is focused on an issue of furnishing a public interior for preschool children. It's aimed mainly on the space of changing room and bathroom. The chosen topic was solved from the viewpoint of psychology, security, hygiene and materials. Resulting information was made into a study case, which was finally realized under the author's supervision. Single pieces together with decoration have made a very safe, comfortable and optimistic space for children and also for their staff. It was put into practice in the Primary and nursery school in Uherčice in years 2013 and 2014.