The Order of Knots Yarn Guide

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Working out which yarn to use in patterns can be tricky. This guides helps explain how to pick your yarn to match your pattern. 

Yarn varies by length per gram. The higher the length per gram, the finer the yarn. 

The simplest way to compare yarns in your local yarn shop (or online) with your pattern, is to convert both to the same denominator (ie: make everything per 100g).  From that you should be able to match the right weight yarn to your pattern. 

Working example

Iris Hardege's Sweetshop hat calls for yarn of 140m / 100g. 

From the below table, you can tell this is a fairly thick yarn. But let's say I want to buy from a particular yarn brand and they have the following options:

  • Yarn A: 182m / 200 yards per 100g
  • Yarn B: 114m / 125 yards per 100 gram
  • Yarn C: 166m / 182 yards per 100g

You could keep finding a brand with exactly 140m/100g, or you could go with Yarn C which is the closest of your options.

The next step would then be knitting a swatch gauge square because your knitting tension will likely be different to the designers. Using the needles prescribed create a swatch square, wash, block it and measure it. If your swatch and the pattern swatch don't match:

  • size up your needles if your swatch is smaller than the pattern prescribes or
  • size down your needles if your swatch is larger than the pattern prescribes. 



Thank you to Laughing Hens and Fingering Yarn for your knitting resources which helped me understand yarn weight, and helped inform this page. 

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