Can I put the word "福" on the back of the dormitory door?

You can put blessing characters on the back of the dormitory door.

The "福" character is divided into positive blessing, reverse blessing and various small "福 characters". According to the size of the "福 character", there is a need to pay attention to where it should be posted. To "bring bad luck", one should sit north and south and stick it in front of the hall. This is called "luck comes into the hall", but a family can only stick one. If there are too many, it is called "repeat the same mistakes" and is unlucky.

The positive blessing is also a fighting party, and a family can only post one. It must be east to west, symbolizing "blessings are like the east sea." The door blessing must be a positive blessing. I have seen reverse blessings posted outside the door. In Qingdao dialect, it is called "Hunfu". If someone's blessing arrives at the door, no one will be allowed in. Putting "bad luck" on the outside of the door will make the family feel that the passing of the year is not going well. Therefore, Menfu must be Zhengfu. In addition, there are blessings such as raising one's head and prosperity, etc., which should be classified into their own categories.