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| Decision field | Open accessSeam Allowance ConverterGlobalRemove | Free downloadIndia Basic Pattern Development TextbookIndia · South AsiaRemove | Free accountTextilliaGlobalRemove | Open accessPattern Grading & Size-Run Validation RecordGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Find patterns & fit | Find patterns & fit | Find patterns & fit | Find patterns & fit |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Patterns & fit | Patterns & fit | Patterns & fit | Patterns & fit |
| Best for | Translating a seam allowance already stated by a pattern or controlled specification | Following a structured classroom introduction to womenswear block development, muslin test fitting, fit correction, and basic flat-pattern manipulation | Cross-referencing sewing patterns, materials, and member projects | Auditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidence |
| 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. | This is a classroom textbook with particular womenswear exercises, charts, figures, terminology, units, and drafting methods. It is not a universal body, block, grading, or sizing system; current industry certification; or proof of fit for an individual wearer or product. Some content and examples predate the current review. Verify the intended body data, measurement protocol, ease, material, seam and construction rules, accessibility, current curriculum status, and representative sewn fit independently. | Textillia is community-contributed and now runs with minimal maintenance, so record freshness, coverage, moderation speed, and continued availability require direct inspection. It does not sell the indexed patterns or materials. Confirm pattern files, sizing, measurements, availability, licence, errata, fabric details, and seller terms with the responsible designer, publisher, or manufacturer. Account deletion permanently removes uploaded projects, and the checked pages do not establish a complete export route. | 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 | ||||
| For | Both | Both | Makers | Apparel brands |
| Location or jurisdiction | Global | India · South Asia | Global | Global |
| Access | Open access | Free download | Free account | Open access |
| Format | Stitch Authority | Reference | Community | Stitch Authority |
| Source type | Stitch Authority | Government guidance | Community database | Stitch Authority |
| Account, payment, and exit | ||||
| Access scope | Not yet reviewed at this level. | Not yet reviewed at this level. | Sewer or textile maker cross-referencing patterns, materials, projects, resources, designers, companies, and shops. | Not yet reviewed at this level. |
| Before an account | Not yet reviewed at this level. | Not yet reviewed at this level. | Browse public pattern, material, project, about, FAQ, and blog pages. Search and full database or community access route through sign-in. | Not yet reviewed at this level. |
| Free-account boundary | Not yet reviewed at this level. | Not yet reviewed at this level. | A free account provides full database access, contribution, project and stash organization, forums, profiles, and related community tools. | Not yet reviewed at this level. |
| Payment boundary | Not yet reviewed at this level. | Not yet reviewed at this level. | The current FAQ says the planned membership system will not launch and the site will not charge for access. Donations and shirt purchases are optional and separate. | Not yet reviewed at this level. |
| Cancellation or exit | Not yet reviewed at this level. | Not yet reviewed at this level. | The FAQ links an account-cancellation process and says deletion is permanent, removes uploaded projects, and does not separately cancel newsletters or recurring donations. | Not yet reviewed at this level. |
| Saved work and data | Not yet reviewed at this level. | Not yet reviewed at this level. | Members can add projects, patterns, materials, and organization records. The checked pages establish permanent project deletion with account closure but no complete export route, so retain important records elsewhere. | Not yet reviewed at this level. |
| 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. | CBSE's official publication index links the Class XII Fashion Studies textbook. Its Basic Pattern Development chapter covers body and dress-form measurement, size relationships, patternmaking tools and terms, fit and balance, muslin test fitting, block correction, bodice, sleeve and skirt blocks, seam allowances, grain lines, notches, necklines, collars, and dart manipulation. The stated learning outcomes include developing blocks from charts and body measurements, testing fit, correcting the pattern, and developing simple designs from basic blocks. | Textillia's current about page describes an independent, centralized, crowdsourced database that cross-references sewing patterns, materials, resources, projects, designers, companies, and shops. Its FAQ says the site does not sell patterns or fabric, logged-in members can add records, full database access uses a free account, and paid memberships will not launch. A February 2026 notice says the dissolved company will continue the site as a donation-supported hobby project with minimal maintenance and reduced active development. | 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 reviewed | Jul 28, 2026 | Jul 16, 2026 | Jul 28, 2026 | Jul 27, 2026 |
| Next review due | Jul 28, 2027 | Oct 14, 2026 | Jan 24, 2027 | Jul 27, 2027 |
| Inspect | ||||
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