Under the new legislation for the promotion of barrier-free environments, people with mental retardation, psychiatric disorder and developmental impairment are added to the user list of all barrier-free facilities. This amplification of users has brought about new problems for the current public toilets as well. The only multi-functional room can not meet the various needs of all users and wheel chair users are demanding for more user-friendlily private rooms to their convenience. This study conducts verification experiments for a minimum measurement of newly-designed private rooms for wheelchair users and suggests that the ideal space should be kept at a scale of 1,150-1,250mm x 1,900-2,000mm within a public toilet.
