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Decision fieldOpen accessHook & Needle Diameter ReferenceGlobalRemoveOpen accessGarment POM Definition & Verification RecordGlobalRemoveFree + paidMaker’s RowUnited States · North AmericaRemoveFree downloadSeamly2DGlobalRemove
Decision fit
Primary jobLearn techniquesSource productionSource productionFind patterns & fit
AreaYarnProductionProductionPatterns & fit
Best forChecking which U.S. alias the current Craft Yarn Council table gives a known metric package size before confirming project gaugeTurning an ambiguous POM name, code, or diagram into a reproducible method before setting targets, tolerances, or inspection decisionsFinding US production partnersDigital pattern drafting
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.The record does not reproduce licensed ISO measurement drawings, supply universal POM codes or targets, approve an internal method, prove measurement capability or product fit, or replace qualified technical-design, pattern, fit, quality, metrology, safety, and regulatory review.A factory profile, platform label, bid, estimate, or message does not establish current identity, factory ownership, capability, capacity, workmanship, pricing, compliance, delivery, or project fit. Paid-plan visibility can affect who responds. Verify the production site, subcontracting, references, samples, quality and compliance records, specifications, commercial terms, and remedies directly.Patternmaking knowledge, controlled measurement files, production conventions, and sewn fit testing are still required. The software does not validate body measurements, ease, balance, grading rules, fabric behavior, construction, or product fit. The project currently labels its user wiki manual as needing updates, so confirm current commands and file behavior against the installed release and active support channels.
Practical access
ForMakersApparel brandsApparel brandsBoth
Location or jurisdictionGlobalGlobalUnited States · North AmericaGlobal
AccessOpen accessOpen accessFree + paidFree download
FormatStitch AuthorityStitch AuthorityMarketplaceSoftware
Source typeStitch AuthorityStitch AuthorityCommercial marketplaceOpen-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.The guide cites current ISO garment-measurement, body-measurement, and textile-conditioning standards plus NIST measurement-process guidance for repeatability and reproducibility; it requires organization-specific codes, added points, targets, and tolerances to remain explicitly controlled.Maker's Row currently lets a brand submit a project before advance sign-up, then provides access to an account. Its project workflow records product details and files and connects projects with factories by location and specialty. Search guidance lists apparel capabilities such as pattern making, sourcing, sample making, and production. Factory access to bids is plan-dependent.The maintained Seamly2D repository identifies the application as GPLv3+ open-source patternmaking software for Windows, macOS, and Linux. It reads multi-size measurement files for standardized sizes and individual measurement files for custom-fit work, publishes downloadable builds and releases, and links an active website and user forum.
Linked page reviewedJul 16, 2026Jul 16, 2026Jul 21, 2026Jul 21, 2026
Next review dueJul 16, 2027Jul 16, 2027Jan 17, 2027Jan 17, 2027
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