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| Decision field | Open accessHook & Needle Diameter ReferenceGlobalRemove | Free accountThreadloop Sewing Pattern DatabaseGlobalRemove | Open accessWRAP Certified FacilitiesGlobalRemove |
|---|---|---|---|
| Decision fit | |||
| Primary job | Learn techniques | Find patterns & fit | Check standards |
| Area | Yarn | Patterns & fit | Production |
| Best for | Checking which U.S. alias the current Craft Yarn Council table gives a known metric package size before confirming project gauge | Searching current and out-of-print sewing patterns | Checking a named facility's current WRAP certification or discovering listed production units |
| Know before using | The reference is not a dimensional measurement, manufacturer inspection, UK or Canadian conversion, steel-hook chart, tool recommendation, yarn assignment, gauge result, or proof that a proposed tool will produce the required fabric. | Community members add and quality-control the records, so confirm sizing, measurements, fabric suggestions, format, availability, errata, license, and purchase terms with the designer or publisher. Adding an entry to a stash does not provide the pattern files. Saved searches and private PDF storage are paid Plus features, and a listing or review does not establish pattern accuracy or fit. | The public map is opt-in and certification applies to an individual production unit; it does not establish product quality, capacity, availability, upstream coverage, or whole-chain performance. |
| Practical access | |||
| For | Makers | Makers | Apparel brands |
| Location or jurisdiction | Global | Global | Global |
| Access | Open access | Free account | Open access |
| Format | Stitch Authority | Community | Directory |
| Source type | Stitch Authority | Community database | Official registry |
| Source and review | |||
| What the source establishes | The lookup reproduces the current public Craft Yarn Council metric and U.S. alias rows and follows the Council's warning that company letter and number labels vary; blank aliases remain blank instead of being inferred. | Threadloop's official guide describes an independent, fully crowdsourced database covering available and out-of-print sewing patterns. Its search supports pattern type, fabric type, age group, body type, cup size, level, format, file features, language, measurements, availability, and other filters; members can also track a stash, wishlist, projects, reviews, and discussions. | WRAP states that the map contains current certified production units worldwide and supports manufacturer discovery across apparel, footwear, sewn and leather goods, and textiles. |
| Linked page reviewed | Jul 16, 2026 | Jul 21, 2026 | Jul 15, 2026 |
| Next review due | Jul 16, 2027 | Jan 17, 2027 | Oct 13, 2026 |
| Inspect | |||
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