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| Decision field | Open accessSeam Allowance ConverterGlobalRemove | Open accessApparel Grade-Rule & Size-Run Validation RecordGlobalRemove | Open accessFreeSewingGlobalRemove | Open accessControlled Tech Pack OrientationGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Find patterns & fit | Find patterns & fit | Find patterns & fit | Source production |
| Area | Patterns & fit | Patterns & fit | Patterns & fit | Production |
| Best for | Working between pattern systems | Auditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidence | Custom-fit home sewing patterns | Understanding what a tech pack must control before using a template or releasing work |
| Know before using | A unit reference; the correct allowance depends on material, seam type, and production method. | The record does not create a production grade, supply universal increments or breakpoints, validate a CAD file or fit population, reproduce licensed standards, or replace qualified anthropometric, pattern, technical-design, fit, quality, accessibility, safety, statistical, and user-research review. | A generated pattern is not independent fit evidence or a production-ready graded block. The result still depends on accurate measurements, the selected design and options, ease assumptions, fabric behavior, construction, and representative test garments. An account stores saved patterns and measurement sets, so review the platform's privacy terms before retaining personal measurements. | An orientation rather than a completed product record; it does not supply a universal format, licensed standard content, measurements, tolerances, construction settings, labels, approvals, compliance conclusion, or product-release authority. |
| Practical access | ||||
| For | Both | Apparel brands | Makers | Apparel brands |
| Location or jurisdiction | Global | Global | Global | Global |
| Access | Open access | Open access | Open access | Open access |
| Format | Stitch Authority | Stitch Authority | Software | Stitch Authority |
| Source type | Stitch Authority | Stitch Authority | Open-source project | Stitch Authority |
| Source and review | ||||
| What the source establishes | The linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface. | The guide cites current ISO body-table, size-designation, and garment-measurement boundaries plus two peer-reviewed studies that tested the relationship between conventional grade rules, anthropometric evidence, and garment fit; it requires product-specific target deltas and validation instead of publishing universal increments. | FreeSewing's official documentation says the browser editor drafts a selected design in real time from a measurement set rather than scaling or grading a standard-size pattern. Users can adjust design options and export the generated result, including as PDF; saving the pattern to an account is optional and is used to revisit it later. | The guide cites current ISO sources for documented-information, garment-measurement, stitch, and seam boundaries plus current U.S. FTC textile and care-labeling guidance; it explicitly separates those authorities from product-specific technical and market decisions. |
| Linked page reviewed | Jul 15, 2026 | Jul 16, 2026 | Jul 21, 2026 | Jul 16, 2026 |
| Next review due | Jul 15, 2027 | Jul 16, 2027 | Jan 17, 2027 | Jul 16, 2027 |
| Inspect | ||||
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