Treble crochet, also known as triple crochet, is abbreviated in patterns as tc; and in the UK, the stitch is called double treble crochet. You'll find this stitch useful for making lacy projects, such as shawls, swim cover-ups, and market bags.
This stitch also combines well into clusters and with other stitches for interesting designs. Treble crochet stitch is common for making tall elements in more intricate patterns like crocheted snowflakes. Because this stitch is three times as tall as a single crochet stitch, when the stitches are side by side, they tend to have lots of space between them. This creates a light, open crocheted fabric. In rows of treble crochet, the stitches often lean in opposite directions from row to row, resulting in a chevron look.
How to Work Treble Crochet Stitch
To start the stitch, wrap the yarn over your hook two times. When working on a starting chain, insert the hook into the fifth chain from the hook, or on regular rows of crochet, insert the hook through the V-shaped stitch.
Wrap the yarn over the hook again, then draw the yarn through the chain or stitch. You should have four loops on your hook. Wrap the yarn over the hook, then draw the yarn through two loops on the hook. Wrap the yarn over the hook, then draw it through the next two loops. Wrap the yarn over the hook, then draw it through the last two loops. You should have one loop on the hook and a completed treble crochet stitch.
Repeat the process, which, when shortened, goes like this: yarn over two times, insert hook, yarn over, draw up a loop, yarn over, draw through two loops, yarn over, draw through two loops, yarn over, draw through both loops. As you add rows of this stitch, work four chain stitches as a turning chain, which equals the height of a treble crochet stitch.