Mirrors are not divided into dancing mirrors and ordinary mirrors. A good quality mirror will not go out of shape when standing far away, and a bad quality mirror may become fat and thin when standing far away. All you have to do is go to a decoration company or a decoration wholesale store, which is usually available, and tell them how high and wide you want. If it is too wide, they will divide it into several sections for you and install it for you after it is finished. I once ordered a mirror in a decoration shop.