the reading room

Fiber Education

Take your time. Every page here is written the way we'd explain it if you were standing in the mill with a cup of coffee.

the CYC 0–7 system

Yarn Weight Guide

Before the early 2000s, yarn weights were named differently by every mill. The Craft Yarn Council standardized the scale below so patterns, tools, and mills speak the same language.

WeightNameCommon UsesTypical Grist (yd / 100 g)
0LaceShawls, wraps, doilies, heirloom knits600 – 800+ yds
1FingeringSocks, baby garments, colorwork, lightweight sweaters400 – 500 yds
2SportBaby blankets, lightweight sweaters, fine crochet300 – 350 yds
3DKEveryday garments, baby items, hats, scarves230 – 280 yds
4WorstedSweaters, hats, mitts, blankets180 – 220 yds
4+AranHeavier sweaters, cabled garments, outerwear160 – 200 yds
5BulkyBlankets, hats, cowls, sweaters, home décor110 – 150 yds
6Super BulkyQuick projects, chunky blankets, statement scarves60 – 100 yds
7JumboArm knitting, giant blankets, wall hangingsUnder 60 yds

*Grist varies with fiber, breed, spinning style, and finish. These ranges are typical for wool yarns and are a helpful guide, not an absolute.

What is "grist"?

Grist is simply how many yards you get in a given weight of yarn. It's the most honest way to describe a yarn: it accounts for how tightly it's spun and how dense the fiber is. Two "worsted weight" yarns can have very different grist depending on the mill.

Which weight should I ask for?

If you're spinning yarn for a specific pattern, match the pattern's suggested grist. If you're building a general-purpose yarn from a fleece, worsted or DK is the friendliest — most patterns are written for one of them, and both wear beautifully.

When in doubt, open the Fiber Assistant in the corner. It'll help you match your fleece to a good weight.