Hanging wallpaper on outside corners: Measure the distance from the edge of the previous strip to corner at the top, middle and bottom. Add 1/2″ to the largest measurement and cut the next strip lengthwise to that size. Hang the strip and smooth it on wall to the edge of corner. Click to see full answer. Simply so, do you wallpaper around corners? Wallpapering inside corners Never wrap wallpaper more than 1⁄2 inch around an inside corner with a drop. Even if the walls are perfectly plumb, the paper will pull away from the corner as it dries, making it vulnerable to tearing or wrinkling. Instead, make a wrap-and-overlap seam.Also, do you Overlap Wallpaper? No, we do not recommend overlapping your wallpaper seams. Seams should be “butted” tightly together and smoothed down with a wallpaper seam smoother. Properly “booked” wallpaper does not shrink on the wall, so you do not need to overlap. Also to know, do you start in the middle of the wall when wallpapering? No matter how tempting it is to start in a corner of the room, resist it and hang the first piece of wallpaper in the middle of the wall. Using a plumb line and pencil, mark a vertical line on the wall. You can use a spirit level instead if you prefer.How do you wallpaper around an arch? Wallpapering an Archway Hang wallpaper above archway. Above the archway hang your wall paper as you normally would on any other wall. Trim wallpaper. Trim the excess wallpaper away from the arch. Make some notches. Seal notches. Repeat. Measure arch. Cut and hang two long strips. Cleanup as normal.