Extended data:
The door is open for fire prevention and evacuation. Interior doors can follow the following principles. First, after the door is opened, try not to occupy the main traffic area. Its purpose is to keep the passage or corridor as unobstructed as possible without being affected by opening the door. Second, in ancient China, the doors of houses and bedrooms were basically opened indoors. There is a related saying that opening to the outside world is "gathering wealth" and opening to the outside world is "scattering wealth". If the doors are all concentrated in a narrow space, it is necessary to consider whether they will collide with each other when they are opened at the same time.
First of all, the size of the portal should be appropriate. The size of the portal is very particular, neither too big nor too small. At school, the door of the house is called "holding your breath", which is the main disease; The small door of the house is called "dissuasion" and the money is refunded; The size of the door should be properly configured with the size of the building, which is an auspicious house. For example, the entrance door is the gateway to the whole home, and the door of the home will be opened wider; The door of a small room should be smaller, such as the door of a bathroom or kitchen.
Second, the door should be opened and closed inward, and there will be air flow in and out. Theoretically, it is considered that it is appropriate to gather gas at home, so the door should be opened inward to facilitate the entry of auspicious gas.
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