Crochet C2C Stitch Tutorial (Corner to Corner) – How to Make a Square & Rectangle
- Lenka
- Sep 5
- 5 min read
If you’ve ever wanted to crochet pictures, graphs, or fun pixel-style designs, the C2C (Corner to Corner) stitch is the perfect technique to learn! With its neat block-like structure, this stitch makes it easy to create anything from simple colour patterns to detailed graphghans and blankets.
In this tutorial, I’ll walk you through how to crochet the C2C stitch step by step—starting with a square and then moving into a rectangle—so you’ll have the foundation to make endless creative projects.
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Before we get into the actual pattern, I also created the Ultimate Crochet Hack Sheet! It's 2 pages with basic crochet abbreviations and symbols, hook sizes in US and UK versions, all the yarn types (with recommended hooks and projects), etc. Feel free to click on the pic or a link to my shop where you can find more details.
Video Tutorial
Check out my YouTube video tutorial where I cover everything. It's a fantastic complement to any written pattern. You're welcome to leave feedback in the video comments.
Recommended Materials
In this tutorial, I use LionBrand Cotton24/7 cotton yarn. I find that the texture stands out more with cotton yarn, and its bright colours are beneficial during tutorials. For this yarn I use a 4mm/G-6 crochet hook.
However, if you're new to crocheting and just practicing, I highly recommend using any solid color acrylic yarn that works with a 5mm/H-8 hook size.
Below is the crochet chart for the C2C. It's an excellent method for learning to read crochet charts, and understanding written instructions can sometimes be beneficial.
Notes Before You Start
Worked in diagonals: The C2C (Corner to Corner) stitch is built in diagonal rows, starting from one corner of your project and working your way up to the opposite corner.
Row counting tip: To count your rows, look at the small blocks—add up the squares along the bottom and along the side, all the way up to the corner.
Not only double crochet: While C2C is most commonly taught with double crochet (DC) stitches, it doesn’t have to be! You can experiment with different stitches for unique textures—for example, the Even Moss Stitch C2C(👉 visit this link for the tutorial).
Great for graph designs: Because of its block-like structure, C2C is the go-to stitch for pixel crochet patterns and graphghans. Each block acts like a “pixel,” making it easy to bring any picture or design to life in crochet.
Sizing tip: The size of your C2C project depends on the yarn weight, hook size, and how many rows you work. You can easily adapt the stitch to create anything from small dishcloths to large blankets.
Reversible texture: C2C creates a dense, textured fabric that looks good on both sides
Directions for C2C (Corner to Corner)
Start with Ch 5.
ROW 1 – Make your first Double Crochet (DC) into the 3rd chain from the hook (the skipped 2 chains count as your first DC). Then, DC into each remaining chain. This creates your very first square/row.
ROW 2 - Chain 5 and flip your project so the first square is facing up. Make a double crochet (DC) into the 2nd chain from the hook, then DC into each remaining chain (remember: 1 square = 4 stitches). To join your new square, slip stitch into the space between the top 2 stitches
Chain 2, then make 3 double crochets (DC) into the same space around the top stitch. This creates the second and last square of Row 2.
ROW 3 - From this point forward, whenever you increase on the sides, always begin with a chain 5 (ch 5) on both ends, unless the pattern tells you otherwise. At this stage, you have two ways to continue: you can keep working into a square shape or adjust your rows to form a rectangle. Below, I’ll show you how to do both options step by step.
C2C Square Tutorial
Once your square reaches the desired length, you’ll begin decreasing on both sides of each row. Continue working this way until you reach the very last corner square, which completes your square.
How to decrease C2C rows
When you finish your last square of the row, do not chain any more stitches. Instead, turn your project and work 4 slip stitches (sl sts) across the top of the double crochets (DCs). This moves your yarn into position to start the next row while decreasing the overall width.
Chain 2, then make your first square as usual by working 3 double crochets (DC) around the top stitch space.
Note: You’ll repeat this decreasing on both sides of your work. This keeps the edges even and gives you the square shape.
C2C Rectangle Tutorial
As you can see in the picture above, for a rectangle you’ll decrease on one side while still increasing on the other side.Continue this way until your piece reaches the desired rectangle length. Once you’re happy with the size, begin decreasing on both sides—just like you did for the square—to finish the shape.
In the picture below, you can see how the decreases are worked on both sides to close off the rectangle shape.
And that’s it!
You’ve just learned how to crochet the C2C stitch in both square and rectangle shapes. This stitch opens up so many possibilities—from cozy blankets to creative pixel-style graph projects.
I’d love to see what you make with this technique!
Share your C2C creations, leave a comment below, or tag me on Instagram @happyheartsy so I can cheer you on.
Don’t forget to like and share this tutorial with your fellow crochet friends—it helps spread the crochet joy! 🧶
Happy stitching,
Lenka
