| You want easy? Figure every 50
square feet is a double roll of standard paper- there, that's
It is important to correctly figure how much material you will need on any project. With wallpaper this is a crucial matter. Too little paper means that you have to stop the job partly finished and if you order more there is a possibility that you will get a different run number with slightly different dye lots. If you order too much paper, there is likely to be a restocking fee for any returned rolls.
It is important to understand a couple of concepts that are
integral to wallpaper.
There are a number of different ways to estimate how much wallpaper you are going to need. My favorite estimating chart uses measured square footage and is called USABLE YIELD. On this site I will also give you another chart to help figure it out.
To use the chart below, you will need to know how much square footage of wall space you are going to cover. I suggest you do not subtract windows and doors from the total unless they make up a significant amount of area. You will also have to know the repeat of the paper you intend to use on that wall. Use the chart below to determine how much usable square footage your pattern is going to yield. Divide your measured square footage of wall space by the usable yield to determine how many rolls of wallpaper your project is going to require.
To give an example, let's say you want to do 10 x 10 room with 8
foot high ceilings.
The chart below is provided by SUNWORTHY Wallcoverings. It will also give you an estimate of the amount of paper you will need but it is not as flexible for figuring odd sizes. Since wallpaper is sold in double roll bolts their chart gives the number of double roll bolts per room.
Using the same room above, the perimeter of the room is 40 feet and the ceiling is 8 feet up. According to this chart, we need six double rolls or 12 single rolls. The ceiling space might be considered to be a 10 foot wall with a 10 foot ceiling height. That gives us three double rolls or six single rolls. A slightly different number than the first estimating method.
48" & 54" Commercial Coverings
If you have ever been into a commercial application you may have seen 48 or 54 inch goods. These large size bolts are measured and sold by the yard. To estimate the number of yards needed to cover a given area, divide the measured square footage by 12 for the 48 inch size and 13.5 for 54".
Borders can give your rooms a designer look. Instead of measuring square footage, simply measure the perimeter of the room or the area you are bordering. Allow a little extra for matching or to compensate for walls that are not straight. Borders are typically 5 yards long (15 feet). Divide the length in feet of the area to be bordered by 15 to determin how many rolls you will need.