Watch our how to wallpaper video, and you'll be making over your walls in no time! Wallpapering around doors, windows and electrical outlets hedge trimming Aberdeen Corners around door and windows can be difficult but an easy way to do it is to hang a full sized strip over the edge of the obstruction. on-line Etymology Dictionary, © 2010 Douglas Harper 1. The idea was that the paper for such listings was essentially good only for wallpaper, as evidenced at Stanford, where it was used to cover windows. This can include removing old wallpaper and patching wall board. At one time wallpaper and paste were separate. Now divide the total square footage by 25 to calculate how many single rolls of wallpaper you will need this will ensure you have enough wallpaper for a large repeating pattern. In addition, Cress Wallpapering has wrapped window casings, baseboards, and doors with wall coverings to essentially make them disappear. Computers. a design or picture in the background of the primary display screen of a graphical user interface: Personalize your tablet by changing the wallpaper. to put wallpaper on a wall, ceiling, etc. or to furnish a room, house, etc. with wallpaper.