What is the most taboo of fences? What shape should the fence be designed?

Fences generally appear in self-built houses, especially in rural areas. You know, the feng shui of the fence is the most important thing. For example, some heights are more particular. The feng shui taboo of the courtyard fence door: 1, the height of the fence should not be the same as the owner's height, so the residents seem to be in prison, and the fortune is definitely not good. 2, the fence is too low, because it is easy to hurt people's hands and feet, so it is very important to choose a height. You can't open a big window on the fence. The fence should not be higher than the house, which is not suitable for opening windows. Opening a window is like opening Suzaku's mouth. It's easy to make trouble. The sharp corner of the fence can't face the door, otherwise it will lose money and money. There are many taboos in the geomantic omen of the courtyard fence gate. You must refer to it when designing, otherwise it will affect Feng Shui. Remember that the sharp corner of the fence can't face the door of the house.