by Donna Collinsworth

Created on: March 07, 2010

Baby yarn, it is all the same right?

No, yarn types and yarn weights have always been a cause of confusion probably since the invention of yarn.  This usually comes about when you either can no longer find the color and or brand of yarn called for in your pattern or you simply want to change it to have a more customized and personal look to your project.  It can be done and fairly easily.

Let’s start with the label. Under the name of the yarn you will find the net weight and yardage.  After that is a rectangle that will tell you the size hook the yarn manufacture recommends: 6 mm – H-8 US.  Just below that is how to wash and care for the yarn.  It is below that that we want to look at.  It is a drawing of a skein of yarn with a number in its center.  That number tells you the weight of the yarn, not to be confused with the weight of the skein or ball of yarn.  This is the standardized measurement of the yarn itself.

O-weight yarn is very thin and lightweight.  It can be called lace weight or fingering yarn.  It is almost thread like in consistency.  It’s used in fine garments like lace shawls, camisoles, etc.  Usually this yarn is recommended for a steel hook size 6, 7 & 8 US.

1-weight yarn is still thin, about twice as thick as the O weight yarns.  It can be called sock yarn, fingering yarn (yes I know I stated above O weight can also be called fingering yarn, now you know part of the problem of just going by a type of yarn and not its weight) and baby yarn.  It is used in making socks and summer weight clothes. Usually this yarn is recommended for a B-E size hook.

2-weight yarn is twice as thick as weight 1 and is called sport or baby yarn.  A lot of baby items are made with this yarn. Usually this yarn is recommended for a B-H size hook.

3-weight yarn is were you are now getting into the category of worsted weight yarns.  Its yarn is between a 2 and 4 and used in sweaters, hats, scarves, etc.  Usually this yarn is recommended for an E-H or even I size hook.

4-weight yarn is twice as thick as sport weight and is probably what most people are use to seeing and working with.  It is used in sweaters, afghans, blankets, etc. Usually this yarn is recommended for an H-K hook.

5-weight yarn is noticeably thicker than 4 weight.  It is thick and requires a much larger hook to work it.  Normally called rug yarn.  Usually this yarn

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