To figure out how much you'll need, just measure the width and height of your wall. The HEIGHT measurement should be equal to or less than the wallpaper panel height. For example, a 94" high wall would require a 96" high panel.
The WIDTH of your wall determines how many panels you'll need. Just divide the width (in inches) by 27. That number is how many panels you'll need. For example, if your wall is 132" wide, you'll need five panels because 132 divided by 27 is 4.88 panels — round up to the nearest whole number. If math isn't your thing, just send your wall dimensions and we'll help you out.
We can create custom sizes to reduce the amount of trimming you have to do. Please message us the specific design and sizes you'd like, and we'll create a special listing for you.