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Decision fieldFree accountThreadloop Sewing Pattern DatabaseGlobalRemoveOpen accessKnitting Stitch LibraryGlobalRemoveFree accountWoolmark Learning CentreGlobalRemoveOpen accessApparel Grade-Rule & Size-Run Validation RecordGlobalRemove
Decision fit
Primary jobFind patterns & fitLearn techniquesLearn techniquesFind patterns & fit
AreaPatterns & fitTechniques & repairTechniques & repairPatterns & fit
Best forSearching current and out-of-print sewing patternsLearning or comparing knit structuresStructured wool educationAuditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidence
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.A foundational library, not yet an exhaustive stitch encyclopedia.This is Woolmark-operated education focused on wool, not a neutral comparison of all fibres or processing systems. A completion badge records coursework, not independent proof of production competence, product performance, environmental impact, or compliance. Confirm technical values and local requirements against current standards before production use.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.
Practical access
ForMakersMakersBothApparel brands
Location or jurisdictionGlobalGlobalGlobalGlobal
AccessFree accountOpen accessFree accountOpen access
FormatCommunityStitch AuthorityReferenceStitch Authority
Source typeCommunity databaseStitch AuthorityIndustry organizationStitch 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 linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface.The current Woolmark Learning Centre library publishes free account-based coursework with module counts, completion times, progress tracking, knowledge checks, and supporting resources. Its wool programs cover fibre science, raw-wool and yarn processing, dyeing and finishing, woven textiles, knitwear, product quality, and wastewater management for learners and facilitators.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.
Linked page reviewedJul 21, 2026Jul 15, 2026Jul 21, 2026Jul 16, 2026
Next review dueJan 17, 2027Jul 15, 2027Jan 17, 2027Jul 16, 2027
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