石庫門の大きさは？
In terms of internal lay-out, immediately within the main gate is the front courtyard ("tianjing" 天井), flanked by wings ("xiangfang" 厢房) of the house on the left and right. At the centre, facing the courtyard is the hall, or "ketang jian" (客堂间). This large room typically has an area of about 12 square metres, and is used like a modern sitting room or living room. On either side of the hall are the "cijian" (次间) or "secondary rooms". Stairs to reach the first floor are located behind the "cijian". Behind the hall and the "cijian" is the back courtyard ("houtianjing" 后天井), which is about half the size of the front courtyard. The well, which provided water for the house, was located here (though later houses were connected to tap water instead). At the back of the back courtyard are back buildings, usually used as the kitchen, toilet and storage room. On the whole, each dwelling preserved the main features required for traditional Chinese day-to-day living, while saving the land required.
large room typically has an area of about 12 square metres