Wallpaper Strip and Roll Cut Planner

How to use Wallpaper Strip and Roll Cut Planner

Enter each wall and one roll specification in centimetres. Add your trim allowance, round straight-match drops to whole vertical repeats, then inspect an ordered roll cut list with start reserve and remaining material.

1. Use the example as the schema; replace its labels and entered model assumptions.
2. Enter each wall and one roll specification in centimetres. Add your trim allowance, round straight-match drops to whole vertical repeats, then inspect an ordered roll cut list with start reserve and remaining material.
3. Calculate, inspect the complete witnesses and limitations, then copy or download the JSON report.

Good to know

• 1–20 walls and at most 500 total full-width drops. Roll length, start reserve, repeat, trim and wall dimensions are at most 100,000 cm; roll width at most 10,000 cm. Positive lengths use exact decimal strings with up to 6 places. Each complete drop must fit in one usable roll.
• Free match requires repeat 0; straight match requires a positive repeat and assumes all usable roll starts are already aligned to the same pattern phase after your entered reserve. The tool does not infer that reserve or read a design image.
• Wall/source-order next-fit cuts are a declared feasible plan, not minimum rolls or a purchase guarantee. No half-drop/offset/A-B panels, splices, opening deductions, damage reserve, corners or width-offcut reuse.
• Local calculation with no upload, input persistence or outside lookup. Model JSON is limited to 30,000 characters and 10,000 values. Decimal quantities are strings with up to six places; count fields use plain JSON integers. Exact fractions are capped at 8,192 bits. The complete JSON output is limited to 1,000,000 characters; approximate numbers preserve their stored values. Unsupported states fail explicitly.