In a wheelchair user accessible toilet rooms, the height of the toilet seat is one of the important requirements in terms of usability. The purpose of this study is to clarify the appropriate toilet seat height for wheelchair users with different physical conditions. Wheelchair users evaluated the usability of two toilets with different seat heights defined by Japanese industrial standards for sanitary wares. As a result, some wheelchair users were unable to transfer getting back to the wheelchair, depending on the height differences between the wheelchair and the toilet seat. Two toilets different seat heights were confirmed to be necessary.
