Figuring wallpaper is pretty easy.Wallpaper is packaged in double rolls. But, it is usually priced in single rolls, so when you go to the store remember that you need to multiply the listed price by two to know what you will actually pay. A double roll of paper covers 56 square feet.

If you're hanging wallpaper, you may also want to look into decorative borders. Border paper comes in different widths but is a standard length of 5 yards or 15 feet.

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