If you plan to put up a wallpaper in two bedrooms, it will probably be 12- 15, which will save a little on the premise of plastering all the walls. If you stick two types of paper, the loss will be greater, which will be about 2 rolls more than the former case. Now the price of wallpaper is a little ordinary, about 300 yuan/roll, and the construction is very fast, and it can be done in one day, which is not as troublesome as painting. If it is a new house, brush the basement membrane on the wall, and when it is dry, you can paste the wallpaper. If it is an old house, it depends on the aging degree of the wall! ! !