What is the door-to-door system?

The door hall system originated from the ritual system. It is said that this is explained in detail in the Three Rites Map, which shows that it is a part of the ritual system. It stipulates the content and layout of palace buildings and determines it as a national system. When the palace building becomes a standard or model, the housing system of princes and literati is also determined, which is the so-called "door system".

After the appearance of the door hall system, there has never been a single "single building" as a building unit in China. But the door and the hall are also divided: the door gradually develops into the appearance of the building; The hall becomes the main body of the building, which truly embodies the use function. Since then, the role of doors has been continuously strengthened, and it has gradually become an important part of the traditional architectural plane in China.

The core of the hall system:

The separation of doors and halls is the main feature of China architecture. Almost all the layout forms of classical buildings in China are developed according to this basic principle. It is probably because of the spirit of "courtesy" inside and outside, up and down, and between the host and the guest. Functionally, the courtyard is composed of doors and halls, and the open space is closed and integrated into the house design.

Although the practice of forming courtyard appeared earlier than the theory of "ceremony", it was probably after the theoretical explanation of "ceremony" that this form was firmly adopted by later generations.

Refer to the above content: Baidu encyclopedia-the system of door hall