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Decision fieldFree accountThreadloop Sewing Pattern DatabaseGlobalRemoveOpen accessApparel Grade-Rule & Size-Run Validation RecordGlobalRemoveOpen accessHow to Find a Clothing ManufacturerGlobalRemoveOpen accessControlled Tech Pack OrientationGlobalRemove
Decision fit
Primary jobFind patterns & fitFind patterns & fitSource productionSource production
AreaPatterns & fitPatterns & fitProductionProduction
Best forSearching current and out-of-print sewing patternsAuditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidenceStarting a manufacturer searchUnderstanding what a tech pack must control before using a template or releasing work
Know before usingCommunity 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 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 selection framework, not a manufacturer endorsement or substitute for legal and compliance review.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
ForMakersApparel brandsApparel brandsApparel brands
Location or jurisdictionGlobalGlobalGlobalGlobal
AccessFree accountOpen accessOpen accessOpen access
FormatCommunityStitch AuthorityStitch AuthorityStitch Authority
Source typeCommunity databaseStitch AuthorityStitch AuthorityStitch Authority
Source and review
What the source establishesThreadloop'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 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 linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface.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 21, 2026Jul 16, 2026Jul 15, 2026Jul 16, 2026
Next review dueJan 17, 2027Jul 16, 2027Jul 15, 2027Jul 16, 2027
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