20 flat. According to official website who inquired about the sales of Dongzhou Garden in Yiwu, the storage rooms in this building are all 20 square meters, belonging to large storage rooms. Dongzhou Garden is located in Champo Road, Yiwu. You can take a bus. 2 1 get off at Xin' entang bus stop. There are a big square, a small pool, a big park, an underground parking lot, a church, Dongzhou No.1 kindergarten and so on.