The half double crochet stitch is a must-know for any crocheter. Connect with other crocheters and explore stitch variations on Ravelry.

What You Will Learn

• the quick answer
• why beginners struggle
• step-by-step fixes or methods
• common mistakes
• helpful next steps

the HDC stitch (HDC): Step-by-Step for Beginners

HDC (HDC) is one of the most useful beginner crochet stitches. It’s taller than single crochet, shorter than double crochet, and it makes a soft, cozy fabric for scarves, blankets, hats, and even sweaters.

In this tutorial, you’ll learn how to make the HDC stitch step by step, how to count stitches so your edges stay straight, and how to fix the most common HDC mistakes.

What is half double crochet (HDC)?

The HDC stitch sits between single crochet and double crochet. Each HDC is made by:

• Yarn over (YO),
• Insert hook into the stitch,
• YO, pull up a loop (3 loops on hook),
• YO, pull through all 3 loops.

Materials you need?

You can practice HDC with almost any yarn, but beginners will learn faster if everything is easy to see and not too slippery.

• Yarn: Worsted weight (Category 4) in a light color (so you can see the stitches).
• Hook: Use the size recommended on your yarn label (often 5.0 mm / H-8).
• Extras: Scissors + tapestry needle.
• Optional: Stitch markers (great for marking the first/last stitch).

HDC abbreviation in crochet

In US crochet terms, HDC is abbreviated as HDC or hdc.

If you’re following UK terms, note that stitch names differ (UK “half treble” is the US HDC).

How to half double crochet (step by step)?

Step 1: Make a foundation chain

For a quick practice swatch, chain 21. Try to keep your chains relaxed and even, tight chains make it harder to insert your hook later.

If your chain feels tight, size up your hook by 0.5 mm just for the foundation chain, or practice making slightly looser chains. A comfortable chain makes the whole first row much easier.

Step 2: Yarn over (YO)

Wrap the yarn over your hook once. This yarn over is what gives the HDC stitch its height.

Keep the yarn over snug but not tight. If it’s too tight, pulling through all 3 loops at the end will feel like a struggle.

Step 3: Insert hook

Insert your hook into the 3rd chain from the hook (a common starting point for HDC). If you’re unsure which chain is the 3rd, count the “V” shapes from your hook and take it slow until it feels natural.

Beginner tip: insert your hook under the top two loops of the chain (the “V”) for the simplest, cleanest edge. If your pattern uses a different placement, follow the designer’s instruction.

Step 4: Pull up a loop

Yarn over again and pull up a loop through the chain. You should now have 3 loops sitting on your hook.

Step 5: Pull through all 3 loops

Yarn over one more time, then pull the yarn through all 3 loops on your hook. That completes one HDC.

Step 6: Repeat across the row

Continue working one HDC into each chain across. As you go, keep your loop height consistent, this helps your row look neat and even.

When you reach the end, count your stitches. For this practice row, you should have 20 HDC stitches (because we started in the 3rd chain from the hook).

Turning chain for HDC

Most patterns use ch 2 as the turning chain for HDC. Whether the turning chain counts as a stitch depends on the pattern, so always follow the designer’s notes.

Beginner tip: if your edges look wavy or you keep missing stitches, place a stitch marker in the first and last stitch of every row until your stitch count stays consistent.

How to count half double crochet stitches (so edges stay straight)?

To count HDC stitches, look at the top of the row: each stitch forms a little V. Count each V across the row, not the turning chain (unless your pattern says it counts).

• Each “V” at the top = 1 stitch
• Use markers for the first and last stitch
• Count every row while learning

Common HDC mistakes (and fixes)

Your rows get narrower

Cause: you’re missing the last stitch of the row (very common!). Fix: mark the last stitch with a stitch marker and count stitches after each row.

Your fabric is stiff

Cause: tension too tight or hook too small. Fix: go up one hook size and keep your loops relaxed, especially the loop you pull up in Step 4.

Your fabric looks too holey

Cause: tension too loose or hook too big. Fix: go down one hook size and make sure you’re pulling through all 3 loops smoothly (not yanking the yarn).

Next steps

• Start Here
• Beginner Crochet
• Free Patterns
• Crochet magic ring tutorial
• How to make a granny square (beginner)

External resource (crochet terms): Craft Yarn Council crochet abbreviations.

Related guides on KnotToYarn

More tutorials and patterns to keep going:

• Start Here
• Beginner Crochet

Frequently Asked Questions

What is a half double crochet stitch?

HDC is a stitch that falls between a single crochet and a double crochet in height. It creates a dense yet slightly stretchy fabric well suited to garments, blankets, and accessories.

Is the half double crochet suitable for beginners?

Absolutely! HDC is one of the first stitches beginners should learn after mastering single crochet. It introduces the yarn-over step while being easy to count and work.

What materials do I need to practice half double crochet?

You need a skein of worsted-weight yarn and a hook in the 5.0 mm to 6.0 mm range. A tapestry needle and scissors will help you finish your swatch.

Add texture to your projects with our complete bobble stitch crochet guide with free patterns.

What is the difference between half double crochet and double crochet?

HDC is shorter than a double crochet because you draw through all three loops on the hook at once instead of in two steps. This makes HDC fabric denser and slightly shorter per row.

If you enjoyed learning about advanced crochet stitches, you might also love our guide on front post double crochet.

If you enjoyed learning about granny square variations, you might also love our guide on granny cluster stitch.

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