Yarn Substitution
Replacing the yarn specified in the pattern with a different yarn. Requires calculation of yardage.
Explanation
Yarn substitution means using a different yarn than the one specified in the pattern. This could be because the original yarn is unavailable, you want a different color, you have an allergy, or for economic reasons. When substituting yarn, you must ensure the new yarn has similar yardage and gauge as the original. Use a yarn substitution calculator to determine how many skeins of the new yarn you will need.