When you first learn how to single crochet, you would normally start off with a normal chain. When you’re using bulky yarn, the normal chain may be the way to go, but if you can start with a single crochet foundation chain, you may prefer it over crocheting with a normal chain. Single crochet foundation chains incorporate both the initial chain row and the first single crochet row. Each stitch of the single crochet foundation chain gives you one chain and one single crochet stitch. Again, if you’re using bulky yarn, it may be a bit difficult to create the single crochet foundation chain, but normally, it would take about the same amount of time as it would to create a normal chain and a single crochet row.
Aside from the obvious benefit of being able to crochet the two rows at once, another good thing about single crochet foundation chains is that they are stretchier than normal chains. When you start a single crochet project with a normal chain, your starting row will often be too tight and will not match up in width with the rest of your project. When you use a single crochet foundation chain, you will barely be able to notice that there is a chain present.
Single crochet foundation chains are especially beneficial when you’re working on a project and don’t know how many stitches you need. Since you’re working the chain and single crochet row at the same time, you can basically just stop creating the foundation row once you’ve found the right width that you need for a given project.
The video below displays two methods in which you can create a single crochet foundation chain. The first method uses a normal slip stitch. While this is the most common method, you may find yourself dissatisfied with the results, as it leaves a big gap at the starting point. The second method shows you how to create a single crochet foundation chain by starting with an adjustable slip knot. This method prevents you from having that big gap at the beginning.