Finding the area of your walls is similar to finding the area of your floor. To calculate the area of a wall, use the standard formula of (Length) x (Width) = Area. Measure the width in inches of each wall that you wish to install Mirth Studio wallpaper on and add them together to get a total width. Then multiply the total width by the height of your room. Divide this number by 144 to get the square footage need to cover the walls.
When taking your measurements please assume that doors and windows are not there. Mirth Studio wallpaper is sold in rolls of 20 square feet.