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Decision fieldFree accountThreadloop Sewing Pattern DatabaseGlobalRemoveOpen accessTextile Language TranslatorGlobalRemoveOpen accessApparel Grade-Rule & Size-Run Validation RecordGlobalRemoveOpen accessYarnSubGlobalRemove
Decision fit
Primary jobFind patterns & fitLearn techniquesFind patterns & fitChoose materials
AreaPatterns & fitTechniques & repairPatterns & fitYarn
Best forSearching current and out-of-print sewing patternsTurning an unfamiliar phrase or production acronym into a precise next questionAuditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidenceReplacing a discontinued or unavailable yarn
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.It is a translation and orientation layer, not legal advice, certification approval, a purchased standard, or proof that a supplier, sample, or lot conforms.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 suggested match is a data-based shortlist, not proof that the yarn suits the pattern or maker. Yarn records can be incomplete or wrong, prices and availability vary by market, and the site uses affiliate links. Confirm the required gauge, total length, fibre behavior, construction, care, color, dye lot, accessibility, and seller terms, then make and assess a representative swatch before committing.
Practical access
ForMakersBothApparel brandsMakers
Location or jurisdictionGlobalGlobalGlobalGlobal
AccessFree accountOpen accessOpen accessOpen access
FormatCommunityStitch AuthorityStitch AuthorityReference
Source typeCommunity databaseStitch AuthorityStitch AuthorityFirst-party platform
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.Each entry includes plain-language aliases, a working definition, a decision boundary, a checked source, and an internal next step; a repository audit enforces completeness and review dates.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.YarnSub's official FAQ says its matching software compares gauge, texture, yarn weight and density, fibre content, and fibre qualities such as drape and softness. Discontinued yarns remain searchable as starting points but are excluded from suggested replacements, and each yarn page provides a route to report source-data problems.
Linked page reviewedJul 21, 2026Jul 15, 2026Jul 16, 2026Jul 21, 2026
Next review dueJan 17, 2027Jul 15, 2027Jul 16, 2027Jan 17, 2027
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