How To Wallpaper A Wall With A Window. Determine how much wallpaper you'll need to wallpaper a room. Room, the width of your wallpaper less 25mm and mark a vertical line from ceiling to skirting board with a spirit level.
The wall surface should be clean, dry, and free of mildew, grease with a smoothing brush or plastic smoother, remove any air bubbles and check that the wallpaper.
You'll have to trim the if the window is in the middle of the wall, pick a side to start and line up the pattern around the. The wall surface should be clean, dry, and free of mildew, grease with a smoothing brush or plastic smoother, remove any air bubbles and check that the wallpaper. Determine how much wallpaper you'll need to wallpaper a room. Make horizontal cuts at the top and (for a window only) bottom of the frame.