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Understand yarn-weight categories

A yarn-weight category describes a broad thickness range, not package mass. Use it to shortlist candidates, then compare finished gauge and fabric.

Related lessons and tools
  1. Yarn label anatomy: turn symbols and numbers into decisions
  2. Make a representative finished swatch
  3. Yarn twist and ply: structure before stitch

A yarn-weight category describes a broad thickness range, not package mass. Use it to shortlist candidates, then compare finished gauge and fabric.

Before you start

Keep the exact labels and make two comparable samples. Change one material property at a time and use the intended finishing method on both.

Try this example

Two 50 g balls can carry 100 m and 200 m. Equal package mass does not make them interchangeable; sample the proposed replacement at the project gauge.

Check your result

  • Compare the dry samples for recovery, surface, drape and the property needed for the project. Record observations separately from label claims.
  • A fiber name or category cannot predict every finished fabric. Construction, treatment, gauge and use all affect the result.

Sources

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Illustration: Three thick, medium and fine cream yarns looped around matching needle shafts, with close views of their distinctly different fabric densities.

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