一間(いっけん)とは?【建築用語・土木用語・大工用語】 一間(いっけん)とは、尺貫法における長さの単位(建物の寸法に使われる)であり、1.82mの長さ。 Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window