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Decision fieldOpen accessHook & Needle Diameter ReferenceGlobalRemoveOpen accessHandweavers Guild of America ResourcesGlobalRemoveOpen accessApparel Grade-Rule & Size-Run Validation RecordGlobalRemoveFree accountThreadloop Sewing Pattern DatabaseGlobalRemove
Decision fit
Primary jobLearn techniquesLearn techniquesFind patterns & fitFind patterns & fit
AreaYarnTechniques & repairPatterns & fitPatterns & fit
Best forChecking which U.S. alias the current Craft Yarn Council table gives a known metric package size before confirming project gaugeFinding a weaving, spinning, or dyeing communityAuditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidenceSearching current and out-of-print sewing patterns
Know before usingThe 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.Coverage reflects affiliated guilds, submitted events, and participating professionals rather than every regional option. HGA states that its paid professional listings are supplied and updated by the professional and are not HGA endorsements. Confirm current contact details, teaching format, accessibility, price, skill level, and safeguarding or insurance needs directly.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.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.
Practical access
ForMakersMakersApparel brandsMakers
Location or jurisdictionGlobalGlobalGlobalGlobal
AccessOpen accessOpen accessOpen accessFree account
FormatStitch AuthorityDirectoryStitch AuthorityCommunity
Source typeStitch AuthorityIndustry organizationStitch AuthorityCommunity database
Source and review
What the source establishesThe 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.The Handweavers Guild of America's current resources page links a searchable affiliate-guild directory, a paid professional-member directory and fiber-art resource guide, book reviews, a public event calendar, scholarships, a quarterly member magazine, and program and store information for weaving, spinning, dyeing, and related fiber arts.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.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.
Linked page reviewedJul 16, 2026Jul 21, 2026Jul 16, 2026Jul 21, 2026
Next review dueJul 16, 2027Jan 17, 2027Jul 16, 2027Jan 17, 2027
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