noun
Western-style room
Refers to a room with Western-style flooring (e.g., wooden or carpeted) and furnishings, as opposed to a traditional Japanese tatami room (和室). Common in homes, apartments, and hotels.
このアパートには洋間と和室が一つずつあります。
This apartment has one Western-style room and one Japanese-style room.
洋間にはベッドと机を置くつもりです。
I plan to put a bed and a desk in the Western-style room.