Whether it is the previous building or the current building, it is very common that this balcony door is not in the middle position, but on one side. This balcony door is usually a single door. The doors between the living room and the balcony are mostly double doors and three doors, and the walls on both sides of this door are generally symmetrical. There is also asymmetry, and there is nothing wrong except feeling "asymmetry". If it must be symmetrical, you can enlarge the short side when decorating.