How to Half Double Crochet

If you’ve mastered the chain stitch and single crochet but want a stitch that works up faster while still keeping some texture, the half double crochet (HDC) is exactly what you need. It sits right between single crochet and double crochet in height, making it one of the most versatile stitches in your toolkit — and once you get the rhythm down, you’ll be reaching for it in blankets, scarves, and hats for years to come.

How to Half Double Crochet: What Is an HDC Stitch?

The half double crochet is a taller cousin of the single crochet stitch. Where a single crochet involves one “yarn over, pull through,” the HDC adds an extra yarn over at the start and pulls through all three loops at once instead of two. That one small change gives you a fabric that’s a bit looser and drapier than single crochet, but denser and warmer than double crochet — perfect for projects that need to work up quickly without looking too open or lacy.

How to Half Double Crochet: Supplies You Need

• A skein of worsted weight (medium, #4) yarn — ideal for practicing HDC
• A crochet hook sized for your yarn (usually H/8 – 5.0mm for worsted weight; check your yarn label)
• Scissors
• A yarn needle for weaving in ends
• Stitch markers (optional, but helpful while you’re learning to count rows)

How to Half Double Crochet: Step-by-Step Instructions

1. Make a foundation chain. Chain the number of stitches your pattern calls for, plus 2 extra chains (these 2 count as your first HDC)

1. Yarn over. Wrap the yarn over your hook before inserting it into a stitch — this is the step beginners most often forget.

1. Insert your hook into the third chain from the hook (or the next stitch, if you’re past your foundation row).
2. Yarn over again and pull the yarn through the stitch. You should now have 3 loops on your hook.
3. Yarn over one more time and pull through all 3 loops at once. That completes one half double crochet.
4. Repeat across the row, working one HDC into each stitch.

How to Half Double Crochet: Turning and Starting the Next Row

At the end of a row, chain 2 — this is your turning chain, and it brings your hook up to the correct height for the next row of HDC. Turn your work, then start your first stitch of the new row in the first stitch after the turning chain (not into the turning chain itself, unless your pattern specifically tells you to). Skipping or misplacing this step is one of the most common reasons HDC rows end up uneven.

How to Half Double Crochet: How to Count Your Stitches

HDC stitches can be trickier to count than single crochet because the stitch has more “layers.” Look for the two horizontal bars that sit across the front of each stitch — each pair of bars represents one HDC. Count along the top of your row, and don’t forget to count your turning chain as a stitch if your pattern calls for it (this varies, so always check the pattern notes). Using a stitch marker on your first and last stitch of a row makes it much easier to keep track while you’re still building muscle memory.

How to Half Double Crochet: Common Beginner Mistakes

• Forgetting the first yarn over before inserting the hook — this accidentally turns your HDC into a single crochet.
• Losing track of the turning chain — either skipping it entirely or accidentally working an extra stitch into it.
• Uneven tension, especially on the “pull through all 3 loops” step, which can make some stitches noticeably tighter or looser than others.
• Miscounting stitches at the end of a row, which causes your project to gradually widen or narrow without you noticing.

How to Half Double Crochet: Tips for Better Results

• Practice on a swatch before starting a full project — HDC has its own rhythm, and a few rows of practice go a long way.
• Keep your tension relaxed; gripping the hook too tightly is the number one cause of uneven HDC fabric.
• Count your stitches at the end of every row while you’re learning, not just every few rows.
• Use a contrasting stitch marker in your first stitch of each row to avoid accidentally working into (or skipping) your turning chain.
• If your rows look slanted, check that you’re inserting your hook into the correct stitch — it’s easy to accidentally work into the wrong loop.

How to Half Double Crochet: Easy Projects to Try

• A simple HDC dishcloth — a small, low-commitment way to practice the stitch.
• A textured scarf — HDC’s slight loft makes for a warm, drapey scarf without a lot of technique required.
• A basic beanie — worked in the round, HDC gives you a nice balance of speed and structure.
• A cowl — a great next step once you’re comfortable working HDC in continuous rounds.