Hanging wallpaper on outside corners:

1.  Measure the distance from the edge of the previous strip to corner at the top, middle and bottom.

2.  Add 1/2" to the largest measurement and cut the next strip lengthwise to that size. (The portion that you cut off will be used next.)

3.  Hang the strip and smooth it on wall to the edge of corner.

4.  Slit the paper at the ceiling and baseboard, and wrap it around the adjoining wall.

5.  Trim excess off the top and bottom.

6.  Measure the width of your "cut-off" strip and snap a plumb line that same distance from the corner on the un-papered wall.

7.  Hang strip to the line overlapping the 1/2".