U.S.
textile craft terminology employs the word
gauge in two different ways: as
hook gauge in reference to the sizing tool, or as a standalone term
gauge to describe the number of
stitches in a standard sized sample of work, usually 4" or 10cm. UK terminology refers to the latter as
tension. Craft patterns include a gauge or tension measurement and good practice among crafters is to achieve the correct gauge on a sample swatch before embarking on the full project. As one crochet guidebook explains: Whenever you are following a crochet pattern you will notice that a gauge is included. This is an all-important guide to obtaining the proper size of the square or garment you are working on. If you don't get the proper gauge, the item will not fit properly and you may run out of
yarn before finishing. Several factors affect fabric gauge, including hook or needle size, although sometimes a crafter may change tool size deliberately in order to achieve a certain gauge. Accurate needle and hook sizing reduces the number of variables that affect these decisions. Additionally, if substitute tools are needed during the course of the project a hook gauge can determine whether a given tool is appropriate in advance of actual work. ==Notes==