間竿(けんざお)とは?【建築用語・土木用語・大工用語】 大工道具の一種で、間数(けんすう)を測るのに使う目盛りのついた竿。2階建ての場合は2本作ることもあります。 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