Many kinds of components, materials and building systems used in buildings are developed according to the changes of building systems by several reasons. However, popular materials are rarely recorded in its detail of transition. In this study, we grasped the outline of development of plastic floor materials and carpets. Linoleums were manufactured for the first time at Taisho era in Japan, and they were popularized for buildings. After World War II, PVC floor materials were widely used for buildings. But cushion floor, carpet and so on were on the market in the 40th of Showa, and then the floor materials diversified. At present, tile carpet is one of the main stream of office use.
