Why is the four-row warehouse called the four-row warehouse?

Sixiang Warehouse is a warehouse building, which is located in the south-central part of Jing 'an District, Shanghai, on the north bank of Suzhou Creek and the northwest corner of Tibet Road and Bridge.

The main entrance number is 1 Guangfu Road. It is a six-story reinforced concrete structure building, covering an area of 0.3 hectares, with a building area of 20,000 square meters, 64 meters wide, 54 meters deep and 25 meters high. Established in 193 1, this warehouse was the tallest and largest building in Zhabei area at that time. Originally, it was a joint warehouse of mainland banks and Beisi Bank (Jincheng Bank, Zhongnan Bank, Mainland Bank and Yanhang Bank), that is, the mainland bank warehouse near Tibet North Road and Beisi Bank warehouse near Jinyuan Road, but it is generally called "four-bank warehouse".