2.8 m — 9 rolls (0.53×15.0 m) and 2 packs of glue.

We buy wallpaper based on the calculations from the need for one room with an area of ​​18 square meters. m with a ceiling height of 2.8 m — 9 rolls (0.53×15.0 m) and 2 packs of glue. You will also need washcloths, old newspapers, rags and a painting tape (you can just be tape).