For patterned wallpaper
Know exactly how the paper falls before you buy it
Patterned wallpaper has a repeat, so every strip must be cut on a multiple of it. That single constraint decides strip lengths, roll count and what the job costs — and it is the thing roll calculators leave out. Draw your walls, map the paper onto them, and see the whole plan: where the seams land, what each length is cut to, and which roll every cut comes off.
Start planning — freeNo account needed to draw. Nothing to install.
It measures your wall, not a rectangle
A gable, a raked stairwell, a chimney breast. Every strip is measured against the real outline, so a short strip costs what a short strip costs instead of everything being priced at the tallest point in the room.
It counts what the roll head costs
A roll leaves the factory cut at an arbitrary point in the pattern, so paper is lost before the first strip is cut. Assume that is free and you under-order — which is how a job runs short on a batch that has since sold out.
It packs the rolls like a decorator
Cuts at different points in the pattern cannot share a roll without skipping paper between them. The plan orders each roll so nothing is skipped, and says when that count is provably the minimum rather than merely the best it found.
It will tell you to buy more, when that is the truth
On a raked stairwell the exact plan needs 11 rolls where a calculator says 21. On a plain 4 × 5 metre room with a 64cm half-drop it needs 18 where the calculator says 12, or 14 with its ten per cent on top. That job would have run four rolls short.
Both are worked examples the software has to keep producing — they are asserted in its own test suite. A tool that only ever promised a saving would be wrong exactly when being wrong costs you the most.
Free, and staying that way
Drawing the walls, choosing the paper, placing the seams, registering the pattern — including the repeat rounding and the head allowance, which are the two things that make a roll count safe to order against.
€9 for one project
The cutting plan, the sheets you take to the workbench with every cut numbered by roll, and the order list. One payment, and that project stays unlocked.
€69 a year for all of them
For people who paper for a living. Renews yearly; cancel whenever you like from your account and the year you have paid for still runs to its end.
Common questions
How is this different from a wallpaper calculator?
A calculator multiplies perimeter by height and adds ten per cent. This measures every strip against the actual shape of the wall, rounds each cut up to a whole pattern repeat, and packs those cuts into rolls the way a decorator cuts them. The two disagree — and which way they disagree depends on the job.
Does it really tell me to buy more sometimes?
Yes, and that is the point. On a plain 4 by 5 metre room with a 64cm half-drop a calculator says twelve rolls, or fourteen with its ten per cent. The exact plan needs eighteen, because a roll arrives cut at an arbitrary point in the pattern and finding the motif costs paper before the first strip. Being told to buy more is worth as much as being told to buy less: the alternative is running short mid-job on a batch that has since sold out.
What does it cost?
Drawing the walls, choosing the paper, placing the seams and registering the pattern are free and always will be. The cutting plan, the workbench sheets and the order list are €9 for one project or €69 a year for all of them, both including VAT.
Is the free version safe to order from?
Yes. The free tier still applies pattern-repeat rounding and the roll head allowance, which are the two things that make a roll count safe to buy against. A free tier that left those out would hand you a wrong number and then sell you the fix, which is not a business model.
Do I need an account?
Not to draw. Only to buy, and then it is an email address and a link — no password. What you have paid for follows the address rather than the browser, so it is still there on your phone.
Does it handle sloped ceilings and stairwells?
That is the case it was built for. Walls are drawn as an outline rather than chosen from a list of rectangles, so gables, raked stairwells, chimney breasts and stepped walls are all just shapes — and each strip is measured against the real one.
Planning a particular room?
What to expect, room by room.
Open the planner