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| Decision field | Open accessPattern Grading & Size-Run Validation RecordGlobalRemove | Open accessYarn Substitution & Evidence RecordGlobalRemove | Open accessFreeSewingGlobalRemove |
|---|---|---|---|
| Decision fit | |||
| Primary job | Find patterns & fit | Choose materials | Find patterns & fit |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Patterns & fit | Yarn | Patterns & fit |
| Best for | Auditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidence | Comparing an original and candidate yarn without treating the 0-7 category system, a familiar retail name, ply count, or WPI result as proof of interchangeability | Custom-fit home sewing patterns |
| Know before using | 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. | The record does not verify a yarn label, certify fibre or origin, provide a regional ply crosswalk, predict exact quantity or cost, approve care, establish allergy safety, or prove finished fit, wear, durability, availability, or project success. | 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. |
| Practical access | |||
| For | Apparel brands | Makers | Makers |
| Location or jurisdiction | Global | Global | Global |
| Access | Open access | Open access | Open access |
| Format | Stitch Authority | Stitch Authority | Software |
| Source type | Stitch Authority | Stitch Authority | Open-source project |
| Source and review | |||
| What the source establishes | 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. | The guide cites current Craft Yarn Council weight-system, FAQ, WPI, and hook-and-needle guidance plus current ASTM tex-designation and ISO yarn-linear-density sources; it distinguishes voluntary craft category, subjective screen, package quantity, measured property, finished gauge, and project decision. | 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. |
| Linked page reviewed | Jul 27, 2026 | Jul 16, 2026 | Jul 21, 2026 |
| Next review due | Jul 27, 2027 | Jul 16, 2027 | Jan 17, 2027 |
| Inspect | |||
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