A half double crochet (often abbreviated hdc) is a basic crochet stitch that’s taller than a single crochet but shorter than a double crochet, creating a dense yet flexible fabric that’s great for blankets, hats, and garments.

Quick Scoop: What is Half Double Crochet?

  • It’s one of the core beginner stitches, usually learned right after single crochet and before double crochet.
  • In US terms it’s called “half double crochet” and written as hdc in patterns.
  • The finished stitch height sits between single and double crochet, so your fabric works up faster than single crochet but with smaller gaps than double crochet.
  • It produces a soft, squishy texture that many people like for cozy projects.

How to Make a Half Double Crochet (Step-by-step)

From a foundation chain or a row of stitches:

  1. Yarn over (wrap the yarn around your hook once).
  1. Insert your hook into the next stitch (or the 3rd chain from the hook, if you’re working into a starting chain).
  1. Yarn over again and pull up a loop; you now have 3 loops on your hook.
  1. Yarn over once more and pull through all 3 loops on the hook in one go.

That completes one half double crochet stitch (hdc).

What Does HDC Look and Feel Like?

  • The stitch has three visible “loops” at the top: front loop, back loop, and a third loop created by the yarn over.
  • Fabric made with hdc is:
    • Thicker than single crochet fabric worked with the same yarn and hook,
    • Less holey than double crochet fabric.
  • It gives a neat, slightly ridged look, especially when you work into the back or third loop only for texture.

Where You’ll See Half Double Crochet Used

  • Common in:
    • Blankets and throws
    • Cardigans, sweaters, and cozy cardis
    • Hats, scarves, and cowls
    • Simple beginner patterns and quick projects
  • Designers also use hdc in:
    • Chevron and ripple patterns
    • Textured stitches and faux-knit fabrics (for example, alternating back-loop and middle-loop hdc rows)

Quick Comparison (Beginner View)

[3][1] [1] [3][7][1] [8][1] [7][4] [3][1] [1]
Stitch Height Fabric feel Typical use
Single crochet (sc) Shortest basic stitchVery dense, firmAmigurumi, sturdy items
Half double crochet (hdc) Between sc and dcSoft, dense but flexibleBlankets, garments, accessories
Double crochet (dc) Taller than hdcLooser, more drape, more gapsAiry blankets, shawls, lacy items

One-sentence TL;DR

A half double crochet is a foundational crochet stitch, written as hdc , made by yarning over, inserting the hook, pulling up a loop, then yarning over and pulling through all three loops to create a medium-height, soft, and slightly dense fabric.

Information gathered from public forums or data available on the internet and portrayed here.