外材（がいざい）とは？【建築用語・土木用語・大工用語】 外材は外国から輸入した木材のことをいいます。洋材とも呼ばれます。 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
