Since ancient times, there has been a saying in China that the design of stairs and steps is "odd for yang and occasionally for yin", so in fact, the construction of steps in rural areas has been paid attention to since ancient times. One is yang, and the other is yin, which is also applicable to building houses. As far as steps and stairs are concerned, there are both positive and negative, that is to say, the rooms, steps and steps of people living in the dead room should be odd, the tombs and temples should be even, and the odd and even numbers of yin and yang should not be chaotic.
2. The stair tread shall not exceed 19 knots.
Some people may think that there are still so many sayings about building stairs in this age. It is good to live comfortably in a rural self-built house. In fact, the truth is true, but from the principle of architectural design, the steps should generally not exceed 19, otherwise it will give people a particularly long feeling and bring psychological pressure, so when designing steps, try to have an odd number of steps, preferably not exceeding 19!
Pay attention to the inflation data, which is seven or eight times, not seven or eight times. I'm talking about the corner stairs here. Generally speaking, the section below the corner staircase is 7 steps, then it turns to the rest platform (corner staircase), and then there are 8 steps above it, which adds up to 15 steps. This is the most common design step of corner stairs in rural areas, which also coincides with the saying of "seven up and eight down".
People who are used to saying that the odd and even numbers of stairs have nothing to do with geomantic superstition are for the comfort of the people. The first time we landed, it was the same as last class, and we were still accustomed to comfort.