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Decision fieldOpen accessCrochet Stitch LibraryGlobalRemoveOpen accessApparel Grade-Rule & Size-Run Validation RecordGlobalRemoveOpen accessKnitting Stitch LibraryGlobalRemoveFree accountThreadloop Sewing Pattern DatabaseGlobalRemove
Decision fit
Primary jobLearn techniquesFind patterns & fitLearn techniquesFind patterns & fit
AreaTechniques & repairPatterns & fitTechniques & repairPatterns & fit
Best forLearning or identifying crochet stitchesAuditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidenceLearning or comparing knit structuresSearching current and out-of-print sewing patterns
Know before usingA foundational library, not yet an exhaustive stitch encyclopedia.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 foundational library, not yet an exhaustive stitch encyclopedia.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
ForMakersApparel brandsMakersMakers
Location or jurisdictionGlobalGlobalGlobalGlobal
AccessOpen accessOpen accessOpen accessFree account
FormatStitch AuthorityStitch AuthorityStitch AuthorityCommunity
Source typeStitch AuthorityStitch AuthorityStitch AuthorityCommunity database
Source and review
What the source establishesThe linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface.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.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 15, 2026Jul 16, 2026Jul 15, 2026Jul 21, 2026
Next review dueJul 15, 2027Jul 16, 2027Jul 15, 2027Jan 17, 2027
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