在农村，自建房的大门无疑占据着举足轻重的地位，它不仅承载着门面的美观，更关系到整个住宅的风水格局。大门的尺寸不适宜，无疑会为自建房的整体效果大打折扣。那么，农村自建房住宅大门宽和高的最佳尺寸究竟是多少呢？

　　In rural areas, the entrance of self built houses undoubtedly plays a crucial role. It not only carries the beauty of the facade, but also relates to the feng shui pattern of the entire residence. The inappropriate size of the gate will undoubtedly greatly reduce the overall effect of self built houses. So, what is the optimal size for the width and height of the entrance of a rural self built residential building?

　　实际上，住宅大门宽和高的最佳尺寸应根据具体情况来定夺。通常情况下，住宅入户门采用子母门，尺寸为1200mm×2000mm，允许的偏差范围在5mm以内。单元门的尺寸则要求宽度不小于2000mm，高度不小于2200mm。对于农村带院落的入户门，双开尺寸一般采用1.5m或1.8m。若自建房院落需要停车，大门的宽度还需根据自家小车的宽度来决定，至少需达到2.1m以上。

　　In fact, the optimal dimensions for the width and height of residential entrances should be determined based on specific circumstances. Normally, residential entrance doors use mother child doors with dimensions of 1200mm × 2000mm, and the allowable deviation range is within 5mm. The size of the unit door requires a width of not less than 2000mm and a height of not less than 2200mm. For rural entrance doors with courtyards, the double opening size is generally 1.5m or 1.8m. If a self built courtyard needs to be parked, the width of the main door needs to be determined according to the width of one's own car, at least 2.1m or more.

　　接下来，让我们来探讨一下住宅大门尺寸的风水问题。如果你相信风水，那么可以根据尺寸的吉凶来定制门，但同时也要考虑到大门整体立面的美观和大气。

　　Next, let's explore the feng shui issues related to the size of residential entrances. If you believe in feng shui, you can customize the door according to the auspicious or inauspicious size, but at the same time, you should also consider the overall aesthetic and grandeur of the gate facade.

　　在我国古代，人们认为按照鲁班尺确定的吉利尺寸来制作门户，将会为家庭带来光耀门庭、吉祥好运，因此，鲁班尺也被称为“门光尺”。

　　In ancient China, people believed that making a door according to the auspicious size determined by the Lu Ban ruler would bring glory and good luck to the family. Therefore, the Lu Ban ruler is also known as the "Gate Light Ruler".

　　鲁班尺上的门洞吉数，换算为公制尺寸，通常吉数尺度有21-23cm、40-42cm、60-62cm、81cm、88cm、89cm、106-108cm、126-128cm、133cm、146cm、155cm、171-176cm、191-198cm、211-216cm、231-236cm、241cm、253-256cm、261-263cm、275cm、281-283cm。

　　The auspicious number of a doorway on a ruler, converted to metric dimensions, typically ranges from 21 to 23 cm、40-42cm、60-62cm、81cm、88cm、89cm、106-108cm、126-128cm、133cm、146cm、155cm、171-176cm、191-198cm、211-216cm、231-236cm、241cm、253-256cm、261-263cm、275cm、281-283cm。

　　一般来说，现代门的高度都不会超过283cm，对于普遍的住宅，大门宽度（即见光度，是门框内壁的水平距离，不包括门框的厚度）多为108cm，高度多为212cm左右，而房门的宽度多为81cm，高度多为198cm。

　　Generally speaking, the height of modern doors does not exceed 283cm. For most residential buildings, the width of the main door (i.e. the visible light, which is the horizontal distance between the inner wall of the door frame, excluding the thickness of the door frame) is mostly 108cm, and the height is mostly around 212cm, while the width of the door is mostly 81cm, and the height is mostly 198cm.

　　关于大门风水尺寸的测量工具，鲁班尺是首选，它两侧有门光星、九良星，丘公煞，背面为丁兰尺，用来丈量阴宅四周尺寸，总共为十段：为“丁、害、旺、苦、义、官、死、兴、失、财”，以上为鲁班尺的样式，还有一种鲁班尺后边不是丁兰尺，而是八星，分别为贵人星，天灾星，天祸星，天财星，官禄星，孤独星，天贼星，宰相星，主要是配合前边来用。

　　The Lu Ban ruler is the preferred tool for measuring the feng shui dimensions of the main gate. It has the Gate Light Star, Nine Good Star, and Qiu Gong Sha on both sides, and the Ding Lan ruler on the back, which is used to measure the dimensions around the Yin Mansion. There are a total of ten sections: "Ding, Harm, Prosperity, Suffering, Righteousness, Official, Death, Prosperity, Loss, and Wealth". The above is the style of the Lu Ban ruler. There is also a type of Lu Ban ruler with eight stars behind it, namely the Noble Star, Natural Disaster Star, Heavenly Disaster Star, Heavenly Wealth Star, Official Lu Star, Lonely Star, Heavenly Thief Star, and Prime Minister Star, which are mainly used in conjunction with the front.

　　此外，大门尺寸风水还讲究住宅大门与格局的协调，大宅大门小屋小门。利用大门改善家居风水，气场从门而入，屋大门小会使气流闭塞，旺气进不来，百事不顺；屋小门大则会泄气，泄气就会散财。同时，门不能太高。门太高，进出时会习惯向上看，有爱慕虚荣，喜欢拍马屁的心理暗示，处理事情眼高手低。门楣太高，甚至高于天花板，这样的格局会造成家中人口越来越少。

　　In addition, Feng Shui also pays attention to the coordination between the residential gate and the layout, such as the big house gate and the small house gate. Using the front door to improve home feng shui, the air field enters through the door. A small front door can block the airflow, preventing the flow of strong air and making everything difficult; If the house is small and the door is big, one will feel discouraged, and if discouraged, one will lose money. Meanwhile, the door should not be too high. The door is too high, and people tend to look up when entering and exiting, with psychological hints of vanity and flattery, and tend to have a high eye for handling things but a low hand. The lintel is too high, even higher than the ceiling, which will result in a decreasing population in the home.

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