Forth Fabric · free · private · browser based
Know how much fabric to buy—before you cut.
Arrange rectangular panels on the usable bolt width, account for seams, shrinkage and straight repeats, then see a purchase-ready length you can explain.
- No account
- No uploads
- Centimetres & inches
From finished piece to fabric order
Interactive planner
Build your cut list in a focused workspace.
Start with the sample project, replace its measurements, and keep the controls, layout, and buying result together while you work.
How it works
A checkable answer, not a mystery number.
- 1
Describe the bolt
Enter total width, unusable selvage, direction, and any straight repeat.
- 2
Add finished pieces
Set dimensions, quantity, seam allowance, rotation, and which pieces must match.
- 3
Review before cutting
Check the visual layout, waste, added repeat length, reserve, and store rounding.
Field notes
Measure with confidence.
Three focused guides cover the decisions that most often change yardage.
How to calculate fabric yardage
Turn a cut list and bolt width into a reliable buying length.
Read guide →6 min readHow to match repeating fabric patterns
Understand repeat direction, phase, and why matched panels need more.
Read guide →5 min readSeams, shrinkage, and reserve
Keep different allowances separate so the estimate stays auditable.
Read guide →A deliberately focused tool
Made for rectangular fabric projects.
Use it for curtain panels, cushion sections, table linens, quilt rectangles, banners, covers, and other straight-grain pieces. It compares deterministic layouts; it does not pretend to replace a professional marker for curved or bias-cut patterns.
- Private by default
- Measurements and saved projects stay on this device. There is no account or project server.
- Browser based
- Calculations run on this device without a paid API or project server.
- Portable projects
- Export a versioned JSON file for backup or transfer, and print a cutting summary.
Before you cut
Common questions
Does the planner upload my measurements?
No. Calculations and project storage run in this browser. The site needs a network only to load the first time.
Can it plan patterned or directional fabric?
Yes. Keep every piece upright for nap or one-way prints, and mark rectangular pieces that need to land on a shared straight-repeat grid.
Is the result a guaranteed professional cutting marker?
No. Confirm expensive cuts yourself. Curves, bias cuts, half-drop repeats, motif centering, fabric flaws, and distortion are outside this version.