Deductions for Windows and Doors:
Estimated No. of Single Rolls = ?
Wallpaper Rollage Calculator is based on standard Repeats Lengths of up to 21" and
may be accurate for even larger repeats.
Total number of rolls required could depend on skills of installer to optimize for
This calculator is a good estimator to give you an idea but is not guaranteed to
be 100% accurate.
It is always a good idea to let the installer calculate the rollage for you too.