Finally complete!  I bought all the items 6 months ago and finally had the time to finish this makeover.  Reading the reviews I felt confident with the product and quality of the wallpaper.  This was our first time ever using wallpaper so the peel and stick was a great idea.  My husband did 80 of the work.  I used the recommended purchase based on the measurement calculator and bought an extra roll just to be safe.  I’m glad I did.  I have plenty left over, but if you can’t get the seam lined Ned up I could see where one might run out.