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| Decision field | Open accessFabric Mass Unit ConverterGlobalRemove | Open accessHook & Needle Diameter ReferenceGlobalRemove | Free + paidThreadloop Sewing Pattern DatabaseGlobalRemove | Free + paidCommon ObjectiveGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Choose materials | Learn techniques | Find patterns & fit | Source production |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Materials | Yarn | Patterns & fit | Production |
| Best for | Translating the same fabric mass-per-area result between metric and U.S. customary listings | Checking which U.S. alias the current Craft Yarn Council table gives a known metric package size before confirming project gauge | Searching current and out-of-print sewing patterns | Finding sustainability-focused suppliers and guidance |
| Know before using | The result is a numerical unit conversion, not a new measurement or conformance decision; it does not establish sample or lot representativeness, significant digits, drape, warmth, opacity, thickness, stretch, strength, shrinkage, durability, sewability, end use, target, or tolerance. | The 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. | 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. | A profile, match, uploaded credential, training credit, award, or platform ranking is not independent certification of a supplier or proof of current capability, performance, impact, capacity, or project fit. The platform's own ranking inputs and paid visibility affect discovery. Verify credentials with the issuer and check the legal entity, production site, claims, samples, references, terms, and compliance directly. |
| Practical access | ||||
| For | Both | Makers | Makers | Apparel brands |
| Location or jurisdiction | Global | Global | Global | Global |
| Access | Open access | Open access | Free + paid | Free + paid |
| Format | Stitch Authority | Stitch Authority | Community | Marketplace |
| Source type | Stitch Authority | Stitch Authority | Community database | Commercial marketplace |
| Account, payment, and exit | ||||
| Access scope | Not yet reviewed at this level. | Not yet reviewed at this level. | Sewer searching pattern records or organizing patterns, projects, fabric, notions, and private files. | Fashion professional or supplier using content, profiles, connections, or a sourcing workflow. |
| Before an account | Not yet reviewed at this level. | Not yet reviewed at this level. | Browse the pattern database, guide, designers, publications, and public community areas without creating an account. | Public content and explanation pages are visible while signed out; profiles, personalized matches, saved items, and connections require signup. |
| Free-account boundary | Not yet reviewed at this level. | Not yet reviewed at this level. | A free account needs no card and supports a stash, wishlist, projects, reviews, and personal organization. | A free account provides a personal or business profile, limited monthly connections, free content, and up to three portfolio items. |
| Payment boundary | Not yet reviewed at this level. | Not yet reviewed at this level. | Plus adds PDF pattern storage, collections, saved searches, bulk editing, and other workflow features on monthly or annual billing. | PRO adds unlimited connections, paid content and training, more profile capacity, and business sourcing workflows. Monthly and annual routes use provider-set terms. |
| Cancellation or exit | Not yet reviewed at this level. | Not yet reviewed at this level. | Cancel through an in-account link. Paid features remain through the current billing cycle, then the account returns to free features. | Cancel in the account by selecting downgrade. A business profile returns to the free version and only its first three portfolio items remain visible. |
| Saved work and data | Not yet reviewed at this level. | Not yet reviewed at this level. | The terms say submitted materials remain yours, but the checked public pages do not explain a full export or how stored PDFs behave after downgrade. Keep originals outside the platform. | Profiles can contain files, work history, product galleries, and sustainability evidence. The current access and pricing pages do not establish full export or deletion; retain originals. |
| Source and review | ||||
| What the source establishes | The calculator uses the NIST SP 811 Appendix B.8 conversion from avoirdupois ounces per square yard to kilograms per square metre and links to a source-reviewed fabric mass record for method, sampling, conditioning, and product controls. | Rechecked July 27, 2026. The 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. | 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. Current terms state that the free plan requires no card, paid upgrades start billing immediately, cancellation retains paid features through the current cycle, and the account then returns to free features. | Common Objective currently offers free individual and business profiles, personalised matches, supplier and content search, and limited monthly connection requests. Paid tiers unlock unlimited connections, additional content, training credits, and the CO Create sourcing workflow. Businesses enter their own profile information and upload certification or membership evidence; profile completeness, sustainability material, training credits, awards, and paid capabilities can influence visibility or ranking. |
| Linked page reviewed | Jul 27, 2026 | Jul 27, 2026 | Jul 28, 2026 | Jul 28, 2026 |
| Next review due | Jul 27, 2027 | Jul 27, 2027 | Jan 24, 2027 | Jan 24, 2027 |
| Inspect | ||||
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