抄録
The purpose of this study is to grasp the present state of building cost and duration in the rationalized building systems. We made inquiries for enterprises, and then we compared conventional wooden houses with houses built of the building systems for rationalization. As a result, we found out that many enterprises expected not cost reduction but period reduction of building systems for rationalization, and that actually rationalization were not effective in cost reduction because of increase in factory labours. We clarified they are effective in period reduction and man-hour reduction on site.
