Worsted weight yarn is a medium-thickness yarn classified as a "number 4" yarn in the standardized yarn weight system created by the Craft Yarn Council. It typically produces a knitting gauge of 16–20 stitches per 4 inches and is best worked with knitting needles sized 4.5mm to 5.5mm (US size 7–9)
. The term "worsted" originally refers to a high-quality wool yarn spun from long-staple wool fibers that are combed to lie parallel, resulting in a smooth, strong, and durable yarn. This spinning method differs from woolen yarns, producing a yarn that is finer, stronger, and smoother
. In practical terms, worsted weight yarn is versatile and popular for a wide range of projects including sweaters, hats, scarves, mittens, blankets, and more. It is thick enough to show stitch definition clearly yet not so bulky as to be cumbersome, making it especially suitable for beginners
. Worsted weight yarn is sometimes also called "Afghan" or "Aran" weight, particularly in the UK where "Aran" is a common equivalent term. It usually has around 8-10 plies, contributing to its round and smooth texture
. In summary, worsted weight yarn is a medium-weight, versatile yarn that balances thickness and ease of use, making it a staple choice for knitters and crocheters of all levels. Sources:
Wikipedia: Worsted
Sheep and Stitch: What is Worsted Weight Yarn?
Country Collection: What is Worsted Weight Yarn?
Prima: Ultimate Guide to Worsted Weight Yarn
LoveCrafts: What is Worsted Weight Yarn?