Abstract
The office building is one of the most structures along with the residential facility, and a representative space where many people spend long hours. So there needs space to guarantee individual privacy and relaxation as much as people spend long hours. Particularly, the toilet should play that role. The setting about the number of toilet stools and urinals is a very important matter to play its role. In the modern architecture, the toilet's facilities have been developing but the problem on establishing their number has not any great improvement, and even though plumbing equipment plan and design, building usage and users' characteristics must be considered, the toilet has been only considered to be part of a construction plan. Accordingly, this study analyzed the actual use conditions and characteristics of the toilet on office buildings where many people use and people stay for long hours, and it aims at providing basic data for calculating a number of appropriate sanitary fixture and an improvement direction.
