What does the butterfly stand for?

The so-called butterfly door means that there are two completely symmetrical doors on both sides of a house. Some of these two doors are on both sides, connected, and some are on the same side. Most of them are on the same side, one is left and the other is right.

The disadvantage of butterfly gate lies in the inconvenience in life, not to mention the fact that the guests have just arrived at your home, which is even worse. Butterfly gate is detrimental to the owner's image and should be avoided actively. I suggest you change the opening direction of one of the doors, so that all the single doors in your house are opened with the same hand.

In addition, two symmetrical doors, one opening inward and the other opening outward, should not be.