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| Decision field | Open accessSeam Allowance ConverterGlobalRemove | Open accessYarn Database EU Dyers and MakersEuropean UnionRemove | Open accessQuiltMapGlobalRemove |
|---|---|---|---|
| Decision fit | |||
| Primary job | Find patterns & fit | Choose materials | Choose materials |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Patterns & fit | Yarn | Materials |
| Best for | Translating a seam allowance already stated by a pattern or controlled specification | Finding independent EU yarn or fibre dyers with off-Ravelry purchase routes | Finding quilt-material sellers and adjacent quilting services by country or map |
| Know before using | This is a unit-translation reference. It does not select, approve, or change a seam allowance; establish a universal fraction; interpret an unstated cutting or stitching line; or replace the exact pattern version, controlled specification, material and seam evidence, sample, production method, equipment, tolerance, or release authority. | It is one curator's intentionally selective, off-Ravelry-oriented database, inventories change, and paid supporters can receive rotating priority placement; verify availability, fibre claims, shipping, and terms directly. | Coverage is quilting-specific and uneven by country; businesses can pay for enhanced features, and community or owner updates do not verify inventory, service quality, hours, or availability. |
| Practical access | |||
| For | Both | Makers | Makers |
| Location or jurisdiction | Global | European Union | Global |
| Access | Open access | Open access | Open access |
| Format | Stitch Authority | Directory | Directory |
| Source type | Stitch Authority | Community database | First-party platform |
| Source and review | |||
| What the source establishes | NIST states that one inch is exactly 25.4 millimetres, and the SI decimal relationship makes one centimetre equal to 10 millimetres. The tool uses those factors, displays rounded equivalents, exposes the size difference to the nearest 1/16 inch when converting to inches, and preserves valid value, source-unit, and target-unit state in the URL. | The individually researched database offers free listings and sortable yarn, fibre, designer, editor, accessory, and location views; the EU page spans multiple countries and direct seller profiles. | QuiltMap describes free public search and free basic listings, community submissions and claims, and country routes covering North America, Europe, Japan, South Korea, and Australia. |
| Linked page reviewed | Jul 28, 2026 | Jul 15, 2026 | Jul 15, 2026 |
| Next review due | Jul 28, 2027 | Jan 11, 2027 | Jan 11, 2027 |
| Inspect | |||
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