Commercial building height of the first floor is generally 3.9, 4.2, 4.5 meters; the second floor above is generally 3.6, 3.9, 4.2 meters. Single-story area of more than 2,000 square meters of centralized arrangement of shopping malls floor height usually does not exceed 9 meters, the commercial street floor height does not exceed 6 meters.

Commercial buildings in a narrow sense refers to the building for the exchange of goods and commodity circulation. With the continuous development of the types of commodities and exchange, the current commercial building categories are increasingly diverse. Commercial buildings include department stores, supermarkets, food markets, hotels, restaurants, banks, post offices and so on. The overall layout and design of commercial buildings should meet the requirements of safety, fire prevention, with a rational organization, clear functional zoning, and to facilitate the masses.

The design characteristics of various types of commercial buildings are as follows:

One, specialized stores, specialized stores, a wide range of buildings, a variety of forms, different scales. Such as textile stores are mostly open display, business hall should be spacious and bright, artificial lighting should be as close as possible to the daylight color, in order to facilitate customer selection of goods. Watches, jewelry stores because of the precious commodities, small size, more counter display, the business hall does not have to be too large, but to be well-decorated. Catering stores operating meals and banquets, to create a beautiful and comfortable dining environment for customers, and equipped with sufficient kitchen area. In the design to meet the different requirements of various stores.

Two, shopping malls, by a number of professional stores consisting of a group of buildings, the scope of its business than the department store is broader. Each store in the mall has a certain degree of independence. To rationally arrange the location of the stores, organize the flow of customers and goods in and out of the route. Can be combined with greening, the arrangement of architectural sketches, composed of a multi-functional place of shopping and rest, such as Shanghai Yuyuan shopping mall.

Three, department stores, large department stores operating thousands of kinds of goods, large-scale, more customers, generally designed for multi-storey business hall, the floor area of up to tens of thousands of square meters; medium-sized department stores, mainly engaged in the daily use of general merchandise and popular commodities, the scale of a few thousand square meters; small department stores operating in the daily use of general merchandise, there is generally only a business hall, the scale of a few hundred square meters. Such stores in addition to the business hall, but also must be equipped with warehouses, management, processing and other rooms.　　Fourth, the market department, specializing in the sale of a production sector products, operating a single product, the scale is not large, both with the production units located together, but also set up separately. Design requirements with small department stores similar. Generally also has a repair department, for customers to repair the factory products. When set up in conjunction with the factory, generally located near the entrance to the factory, pay attention to the purchase of goods and the production process does not interfere with the flow of human routes.

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