This was our first wall papering project. We put sizing on the wall first to help with adherence and to allow us time to manipulate/move the wall paper. We did have to discard some of the wall paper because we were matching up the pattern. We did one wall with six sheets (about 2 rolls with plenty leftover).  It turned out beautiful. Once we completed the wall paper, we then painted the room.  I would highly recommend this product. No regrets whatsoever.