The butai (chapel) and gohai (porch) of the main hall of Fudōji temple in Shiga prefecture was preserved during the restoration of the main hall in 1933. This paper describes the installation and evolution of the butai and gohai as an expansion of the main hall by studying the munafudas (ridgepole plagues) of the main hall and archives on the restoration of the main hall. It is believed that the butai and gohai were installed between the 1660s and 1750s and went through multiple modifications in 1770, 1809 and 1933.
