Estimates — add extra for waste and confirm with your supplier.
We work out how many full-height strips you need across the walls, how many strips each roll yields (allowing for pattern repeat), then round up to whole rolls plus waste.
Plan your whole project with our other free DIY calculators.
Matching the pattern wastes some length on each strip.
10–15% typical; more for big repeats or many windows.
Always — and buy from the same batch for color match.
No — an estimate; measure carefully on-site.