Wallpaper Glossary of Terms
Bolt: A continuous roll of wallpaper equivalent to two or more single rolls packaged together.
Cross Seaming: A technique where a wallpaper liner (see "liner paper" below) is installed horizontally and the decorative wallpaper is installed vertically. This ensures that the seams do not fall in the same place and results in a more secure adhesion.
Double roll: A double roll is the equivalent length of two single rolls on one physical roll. Many manufacturers sell wallpaper by the single roll but ship by the double roll. Almost all wallpaper on our site is priced and sold by the SINGLE ROLL. There is no universal measurement for a single roll, so please make sure you know how many yards are on a roll before you purchase.
Drop Match: Drop match patterns are the most complex pattern matches. These wallpapers require a good deal of planning because the pattern needs to be aligned both horizontally and vertically with the wallpaper on either side.
Dye Lot: Bolts of the same wallpaper pattern that were manufactured at the same time. Occasionally "dye lots" may vary slightly.
Euro Roll: Many English companies use this measurement for their wallpaper rolls. A single roll of wallpaper that measures 20.5” wide and 11 continuous yards of wallpaper that covers approximately 56 square feet.
Half Drop: Specific to wallpaper, the half drop is where the pattern repeats across the roll half way down the vertical repeat. This normally means allowing for extra length and cutting very carefully as each cut will start at the half repeat. The best way to be certain of buying enough wallpaper, is to work it out as if it were an ordinary repeat and add half a repeat to each drop, except for the first one.
Linear Feet: This pertains to length. It is the measured distance between two points. This could refer to such things as the height of a wall, the length of a strip of wallpaper, or the length of a piece of border. A linear foot is the measurement required for borders.
Lining Paper: Available in a variety of weights, liners are used to smooth out rough surfaces.
Matching: The technique of joining two strips of wallpaper so that partial designs or a sequence of designs line up properly.
Memo: (Synonymous with "sample") A small piece of wallpaper from a selected pattern. This may or may not be from the bolt of wallpaper a customer will receive. Samples show general color and texture of the pattern.
Mural: A single picture or scene with no repeats. Murals can come packaged in panels that, when installed properly, form the scene. Extreme care should be taken when installing murals as each panel is numbered and there is no room for error.
Pre-pasted: Wallcoverings that have an adhesive sprayed or coated on the backing.
Pre-trimmed Wallpaper: Wallpaper in which the selvage edges have been removed at the mill before packaging to make installation easier.
Random Pattern Match: When the wallpaper pattern is random, you don't need to worry about matching any pattern at all. A great example of a random pattern match is a texture, such as grasscloth, or a stripe.
Repeat: The pattern repeat is the vertical distance between where the pattern is identical again (repeats). That distance can be less than an inch or as much as the entire width of the wallpaper.
Reserve: Wallpaper that is reserved for a customer for a one week period. This ensures the customer of having a specific wallpaper available until the purchase is made.
Sample: (Synonymous with "memo") A small piece of wallpaper from a selected pattern. This may or may not be from the bolt of wallpaper a customer will receive. Samples show general color and texture of the pattern.
Single roll: Almost all wallpaper on our site is priced and sold by the SINGLE ROLL. There is no universal measurement for a single roll, so please make sure you know how many yards are on a roll before you purchase.
Straight Across Match: A wallpaper with a straight across match is a one that starts over at the ceiling line. This means that the design has to match the strips on either side. These take more planning than random matches, but they are not typically complex patterns.
Strippable Wallpaper: Wallpaper or border that is easily removed without damaging the wall. Strippable papers remove both the cover and backing at the same time.
Unpasted Wallpaper: Wallpaper or border that has not been pre-pasted at the mill prior to packaging.
Untrimmed Wallpaper: Wallpaper in which the selvage edges have not been removed at the mill prior to packaging. Trimming is done by the installer and can be done using a straight edge and razor knife prior to installation or the wallpaper can be double-cut during the installation process.