Papering internal corners
Trying to wrap a wide strip of wallpaper around a corner invariably results in unsightly creases. The answer is to cut the strip of paper lengthwise, allowing 12mm (1/2in) only to turn the corner.
If the offcut is wide enough, paste it onto the adjacent wall, covering the overlap in the corner. Mark a plumbed guideline on the wall to make sure the offcut is vertical.
Papering external corners
When taking wallpaper around an external corner, cut the strip to width, leaving a 25mm (1in) overlap to wrap around the corner. Hang the offcut on the adjacent wall so that it overlaps the turned edge by about 12mm (1/2in).
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