Offset Wallpaper Installation Mistakes to Avoid Installing offset wallpaper requires precision, and common mistakes can disrupt the final look. One major error is failing to account for the pattern repeat measurement, leading to misaligned designs. Skipping the use of a plumb line can cause wallpaper strips to be applied crookedly. Incorrect adhesive application can create bubbles an... https://www.arthouse.com/blogs/how-to/pattern-repeat-pattern-match-the-low-down