Different standard sizes have different standards.
Generally speaking, the normal size is usually used in the processing of finished doors and door covers, and the base of the door cover is determined according to the size of the door during construction, such as Anyang and Living Standard. At present, it is generally believed that the door of a library is 80cm wide and 2m high. But there are also standard and nonstandard sizes, usually positive and nonstandard. Instead of the standard size: you can make the door cover first and determine the door according to the size of the door cover. Generally, real estate developers will reserve a little larger than this size, such as a dozen or twenty centimeters, but there are also a few houses designed by owners themselves that have not been considered well. At this point, they can only be designed according to actual standards. If the size of the warehouse door is too large, it can be filled to the standard value. But in real life, it is still necessary to measure the size of the owner's home first, and then design the size of the book door.
Size and feng shui
The size of the door is best proportional to the area of the house, and so is the study door. No big doors and small spaces, no small space doors. Because the door is big and the space is small, it is a disgrace from Feng Shui. So try not to choose this pattern, feng shui is very bad. At the same time, the study needs to gather air, so the size and type of the door are very important. It should be new, not old. If it is damaged, you'd better replace it in time and buy a new one.
The mysterious "Lubanchi"
The size of the door is related to all this. "Sages make rulers", which is the mysterious "Lu Banchi". "Ten Books of Yangzhai" said: There are several kinds of door rulers in the world, which are tried and tested, but this ruler is true, the length is consistent, and there is no difference between good and bad. Gai Xi lost his class, made good use of holy trees, and learned to be poor, so creation was the ruler. Later people were called "Lubanchi". On both sides of Lubanchi, there are Gate Light Star, Nine Good Stars and Autumn Palace Sand. Used to help craftsmen choose the time to build the door. Lu Banchi is followed by Ding Lan ruler, which is generally used to measure the size around haunted houses, or the size of tombs, or the length, width and good luck of tombs. * * * is divided into ten sections, namely "Ding, Harm, Prosperity, Suffering, Righteousness, Official, Death, Prosperity, Loss and Wealth". The above is Lu Banchi's style, followed by a Lu Banchi, which is not Ding Lan's ruler, but eight stars, which are distinguished stars.