How to design the gate of Chinese quadrangle?

One of the most common is the Dahongmen or the green and black iron gate. Besides, there are some carved wrought iron doors, but the one with the most China style and culture is painted wrought iron doors.

Generally, there are two painted iron doors with a pair of lion-shaped knockers above them, with a domineering face and a ring in the mouth. Door knockers are used for doorknobs, as well as for opening and closing doors and knocking at doors. According to historical records, the main entrance of the four cities of Prince Mi is nailed with a bronze ring painted with gold; Green oil copper ring at the entrance of Gongwangfu; Gold lacquer animal face tin ring for the back door of Guanbai No.1 Middle Palace; One or two products official door green oil animal face tin ring; Black oil tin ring of three to five official doors; Six to nine levels of the official door black oil iron ring. There are some decorations around, which are very beautiful and have deep implications in Chinese decoration.