Keeping Wallpaper Lined Up Around a Window


Coming around a window can be tricky, because wallpaper likes to twist out of shape, windows can be off-plumb and / or not square, and other reasons, so it’s possible that the pattern can match above but not under the window, or the edges above and below the windows might not line up. Or everything can start going off-plumb.

In the first photo, you can (barely) see the vertical line of my laser level, which is helping me keep the left edges of the wallpaper strip lined up as the paper hangs over and then under the window. Next I hung the shorter strips above and under the window. I kept them “open” (did not trim the tops and bottoms), so I could “tweak” them if necessary.

In the second photo, I have positioned the next strip, again using my laser level to create a straight, plumb line on the left edge. This will ensure that subsequent strips will also hang plumb. I let this new strip hang a bit below the pattern match of the previous strip, so I could accommodate any rise or fall in the pattern; the section under the window was longer, so this is the area I wanted the best pattern match. By leaving the paper loose, I was able to match the pattern at the under the window, then pull the paper up to meet the strip over the window.

Sure enough, the pattern match was off a bit above the window. In addition, the strip on the top reached about 1/2″ further to the left than the strip under the window. This meant I was going to have a pattern mis-match, as well as an overlapped seam. But because I had not yet trimmed the top or bottom of that strip above the window, I was able to manipulate this strip to avoid these issues.

I took this strip and cut it vertically along a flower stem. The right half I aligned with the pattern match on the right. The left half was moved down to match the pattern on the full-length strip on the left, while also butting it up against this strip. This meant that I had a slight pattern mis-match in the middle of the cut strip, as well as an overlap.

All this was OK with me. The busy pattern easily disguised the slight pattern mis-match, as well as that 1/2″ overlap. In addition, it was way up high, over the window.

Standing back, you cannot notice any pattern mismatch or overlap. But what you do see is that the pattern runs perfectly across the top of the wall, and the subsequent strips are all and plumb and nicely butted together.

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