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| Decision field | Open accessKnitting Needle to Crochet Hook Size ChartGlobalRemove | Free + paidThreadloop Sewing Pattern DatabaseGlobalRemove | Open accessCPSC Certificate eFilingUnited States · North AmericaRemove | Free + paidSewportGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Learn techniques | Find patterns & fit | Check standards | Source production |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Yarn | Patterns & fit | Standards | Production |
| Best for | Finding the current CYC hook and needle aliases that share one known nominal metric diameter before confirming project gauge | Searching current and out-of-print sewing patterns | Planning the current CPSC certificate-data handoff for regulated imports with the importer, finished-product certifier, customs broker, and entry records | Requesting apparel-production proposals |
| Know before using | A shared nominal diameter does not make a knitting needle and crochet hook interchangeable or predict equal gauge or fabric. The reference is not a physical measurement, manufacturer inspection, UK or Canadian conversion, steel-hook chart, tool recommendation, yarn assignment, or project approval. | 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. | The portal does not decide whether a product requires certification, identify the correct rules or certificate data, classify an entry, replace the current 16 CFR part 1110 text, or reconcile a filing to an actual shipment. Effective dates and workflows differ by entry route; use current CPSC, CBP, customs, product-safety, and legal review. | A profile, proposal, match, or escrow status does not establish factory ownership, identity, capacity, workmanship, quality systems, labour or chemical compliance, delivery performance, contract enforceability, or project fit. Verify the legal and production entities, references, site and subcontracting, samples, compliance evidence, specifications, terms, and remedies directly. |
| Practical access | ||||
| For | Makers | Makers | Apparel brands | Apparel brands |
| Location or jurisdiction | Global | Global | United States · North America | Global |
| Access | Open access | Free + paid | Open access | Free + paid |
| Format | Stitch Authority | Community | Reference | Marketplace |
| Source type | Stitch Authority | Community database | Government guidance | Commercial marketplace |
| Account, payment, and exit | ||||
| Access scope | Not yet reviewed at this level. | Sewer searching pattern records or organizing patterns, projects, fabric, notions, and private files. | Not yet reviewed at this level. | Apparel brand requesting production proposals or service provider responding to enquiries through Sewport's project workflow. |
| Before an account | Not yet reviewed at this level. | Browse the pattern database, guide, designers, publications, and public community areas without creating an account. | Not yet reviewed at this level. | Read the brand and service-provider workflow, public learning pages, and selected country or city manufacturer pages. Creating an enquiry, seeing matched results, messaging, proposals, and dashboard work require an account. |
| Free-account boundary | Not yet reviewed at this level. | A free account needs no card and supports a stash, wishlist, projects, reviews, and personal organization. | Not yet reviewed at this level. | The current first-party FAQ gives brands a seven-day trial and says service providers can join free. Access differs by role: brands create and publish enquiries; completed service-provider profiles can appear in search and browse enquiries. |
| Payment boundary | 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. | Not yet reviewed at this level. | After the brand trial, the FAQ routes brands to monthly or annual subscription access. A supplier proposal, brand-paid platform commission, production payment, and optional escrow are separate transaction costs rather than the subscription itself. |
| Cancellation or exit | 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. | Not yet reviewed at this level. | The FAQ routes account cancellation through Account settings and says the trial can be canceled. The checked public pages do not establish when subscription access ends, refund terms, or what happens to active enquiries, messages, proposals, or escrow after cancellation. |
| Saved work and data | 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. | Not yet reviewed at this level. | Accounts can hold project details, uploads, messages, proposals, agreements, and invoices. Invoices and individual attachments have download routes, but the checked public pages do not establish a complete account export or post-cancellation retention and deletion path. Keep original files and decision records outside the platform. |
| Source and review | ||||
| What the source establishes | Rechecked July 28, 2026. The lookup reproduces the current public Craft Yarn Council metric and U.S. alias rows, aligns hooks and needles only when their nominal millimetre value matches, and leaves missing rows or aliases unfilled. | 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. | CPSC operates the eFiling portal with role-specific importer, broker, applicability, Product Registry, regulated-product, laboratory, ACE, FAQ, video, and document-library routes. The certificate final rule took effect July 8, 2026 for covered non-FTZ products, with separate timing for covered FTZ entries. | Sewport's current brand workflow starts with an account and guided project enquiry, then exposes proposals from garment factories and production specialists. The platform tells brands to compare profiles, portfolios, location, price, and communication, then record service, delivery, payment, and contract terms in a formal proposal. Its service-provider workflow includes factories, sample studios, pattern cutters, tech-pack makers, sourcing specialists, and material suppliers, with optional split-payment escrow. |
| Linked page reviewed | Jul 28, 2026 | Jul 28, 2026 | Jul 16, 2026 | Jul 28, 2026 |
| Next review due | Jul 28, 2027 | Jan 24, 2027 | Oct 14, 2026 | Jan 24, 2027 |
| Inspect | ||||
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