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Decision fieldOpen accessHook & Needle Diameter ReferenceGlobalRemoveOpen accessAAPN Member Sourcing DirectoryGlobalRemoveOpen accessApparel Grade-Rule & Size-Run Validation RecordGlobalRemoveOpen accessFreeSewingGlobalRemove
Decision fit
Primary jobLearn techniquesSource productionFind patterns & fitFind patterns & fit
AreaYarnProductionPatterns & fitPatterns & fit
Best forChecking which U.S. alias the current Craft Yarn Council table gives a known metric package size before confirming project gaugeFinding component and service partners beyond cut-and-sewAuditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidenceCustom-fit home 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.It contains association members rather than the whole market; membership does not establish capacity, pricing, workmanship, certification, labor conditions, or project fit.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.
Practical access
ForMakersApparel brandsApparel brandsMakers
Location or jurisdictionGlobalGlobalGlobalGlobal
AccessOpen accessOpen accessOpen accessOpen access
FormatStitch AuthorityDirectoryStitch AuthoritySoftware
Source typeStitch AuthorityIndustry organizationStitch AuthorityOpen-source project
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.AAPN states that its public directory can be searched by company, country, or category and spans factories, textiles, trim, logistics, services, and technology.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.
Linked page reviewedJul 16, 2026Jul 15, 2026Jul 16, 2026Jul 21, 2026
Next review dueJul 16, 2027Jan 11, 2027Jul 16, 2027Jan 17, 2027
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