格天井とは?【建築用語・土木用語・大工用語】 格天井とは、釘は使わずに角材を格子に組み、その上に板や網代などを張った天井のことを格天井といいます。日光東照宮外陣の格天井は有名です。 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