How high should the walls of rural houses be built to conform to Feng Shui?

The height of the fence is not a fixed number, which depends on the height of the main house and the size of the yard. Under normal circumstances, the fence should not exceed four-fifths of the height of the main house, and the fence should be lower than the house, otherwise the wind can't blow in. Where does Feng Shui come from? But it can't be too low, not less than two-thirds, otherwise it will hold your breath and the feng shui is not good, but it is not fixed, depending on the surrounding environment.