
Why is yarn weight so important? The weight of a yarn refers to the thickness of the yarn. In order to achieve the correct tension and gauge you need to have the correct weight of yarn as well as the correct needle size. If you know the weight and which needle to use, you then will have the ability to make changes to the item you are making. The chart below is a guideline using the information from the Standard Yarn Weight System. Using the information provided in this chart will allow you to make informed decisions on your next yarn purchase.