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Decision fieldOpen accessYarn Substitution & Evidence RecordGlobalRemoveFree accountThreadloop Sewing Pattern DatabaseGlobalRemoveOpen accessControlled Tech Pack OrientationGlobalRemove
Decision fit
Primary jobChoose materialsFind patterns & fitSource production
AreaYarnPatterns & fitProduction
Best forComparing an original and candidate yarn without treating the 0-7 category system, a familiar retail name, ply count, or WPI result as proof of interchangeabilitySearching current and out-of-print sewing patternsUnderstanding what a tech pack must control before using a template or releasing work
Know before usingThe 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.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.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
ForMakersMakersApparel brands
Location or jurisdictionGlobalGlobalGlobal
AccessOpen accessFree accountOpen access
FormatStitch AuthorityCommunityStitch Authority
Source typeStitch AuthorityCommunity databaseStitch Authority
Source and review
What the source establishesThe 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.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.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 reviewedJul 16, 2026Jul 21, 2026Jul 16, 2026
Next review dueJul 16, 2027Jan 17, 2027Jul 16, 2027
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