Lining paper can be hung in two directions, vertically and horizontally. When hanging lining paper, you want to avoid prominent seams by making sure the joints of the lining paper and the wallpaper don’t coincide. You can hang the lining paper vertically if the width of your lining paper is different than the width of your wallpaper. Vertical lining paper can be hung as regular wallpaper. If you choose to hang the lining paper horizontally, a method called “cross lining”, you can be absolutely sure that your vertical seams won’t align.