Corresponding to economic advancement, the quality of these houses had been improved gradually: Dirt floors came to be used only for kitchens and workspaces, and raised floors were built for rooms for eating food and for sleeping.
経済的に向上するに従って、住宅の質も次第に上がり、土間を台所や作業場などに使い、床を造り食事や就寝に使う部屋が造られていった。