120 flat clothing store needs 30 square meters warehouse. Warehouse inventory mostly appears in the form of stacking and hanging, plus activity space. According to unscientific statistics, the average number of pieces stored in a warehouse per square meter is about 30 (fewer bundles and more casual clothes), the inventory of 300 pieces needs a warehouse of about 10 square meter, and the inventory of more than 600 pieces needs a warehouse of about 20 square meters, with a median of about 15 square meter.