The homeowner accidentally ordered half as much wallpaper as was needed, so more was ordered. Unfortunately, we were not able to get the same run number (also called batch number or dye lot ).
Wallpaper bolts printed at the same time will all have the same run number. Then the next time the manufacture prints this material, he’ll mix up a new batch of ink. This new ink will almost assuredly be a teeny slight difference in shade .
You can’t put wallpaper strips from different runs next to each other on the same wall; you will see this slight color difference and the wall will have a subtle yet unpleasing striped effect.
You can, however, use different runs on different walls, “breaking” the run in a corner. You won’t notice the color difference because light hits different walls differently and causes a natural color difference.
This trick works, but it does require extra wallpaper.
Moral of the story:
~Always confirm how much paper is needed with the installer before ordering.
~Always buy a more than you think you’ll need; one extra double roll / bolt at minimum.
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