How to Decrease C2C Crochet Tutorial

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Learn how to decrease your corner to corner crochet, C2C for short. Corner to corner is a crochet method that uses squares of stitches to increase to width. Once your crochet project is as wide as needed, then you decrease in the C2C crochet technique.

A C2C crochet pattern is worked in diagonal rows. This method is an easy way to crochet graphghans made from little squares. These are afghans that you can crochet from a C2C graph, or color chart that depicts a picture.

You can also crochet beautiful projects that are a solid color or stripes. If you’re new to corner to corner crochet, be sure to start with something simply with only one or two color changes.

Crochet square in corner to corner method with beige corner.

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In this post you’ll learn

  1. How to decrease in C2C crochet.
  2. How to do color changes on a decrease row.

I include the written instructions, and a full step by step tutorial with pictures for the c2c decrease below.


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Learn How to Crochet C2C

The C2C stitch is usually double crochets, but half double crochet works too. Be sure to check your pattern details, as your stitch will effect sizing.

I have a full tutorial on how to C2C crochet here. This tutorial includes how to start C2C, how to increase, how to decrease in C2C and how to change colors.

Each Corner to Corner Block Includes:

  1. Chain, find my beginner’s tutorial here if you need it.
  2. Double Crochet Stitches get the tutorial here.
  3. To join blocks and decrease in corner to corner, we’ll use slip stitches – check out the tutorial here.
Grey square decreasing in corner to corner crochet.

How to Decrease in Corner to Corner Crochet?

C2C starts with one block and you work toward the opposite corner. Each diagonal row increases by one block at the beginning of each row.

Once your C2C project to the widest point then you are ready to decrease your C2C crochet. The decreases will happen at the same rate. The number of blocks will decrease by one for every row.

To decrease, you will not start a new block on the next row, but slip stitch over instead. I detail how to do this in the tutorial below.

You will continue decreasing back down to a one block corner, and finish off!

Blue and white crochet blanket with large center snowflake and small ones around it.

Free Crochet Patterns for C2C Crochet

The Snowflake Blanket is an easy C2C blanket pattern with only two colors.

The Gingham Pillow crochet pattern creates a checked fabric in corner to corner and includes a C2C chart.

A cute pumpkin square is also a great beginner project in C2C method.

DoraDoes has a great tutorial on how to crochet a C2C rectangle.

picture of crochet blanket raccoon

Color Changing Tips for C2C

Be sure to check out my post that includes tips for keep your colors organized!

Stitches / Abbreviations (US Terms)


dc – double crochet


sl st-slip stitch  


Pin It

Pin image of crochet c2c swatch with text.

Corner to Corner Crochet Video Tutorial

You can also watch the video on my YouTube Channel.

Scroll down for the tutorial on how to decrease C2C crochet with step by step photos!

Grey crochet corner to corner square with beige color change at one corner on white table with crochet hook.

How to Decrease C2C Crochet Photo Tutorial

Yield: 1
Prep Time: 2 minutes
Active Time: 10 minutes
Additional Time: 2 minutes
Total Time: 2 minutes
Difficulty: Easy
Estimated Cost: $1

Learn how to decrease in C2C crochet method. This corner to corner crochet technique makes creating graphghans easy!


  • Any yarn will work for corner to corner crochet. For this tutorial I'm using Premier Everyday Yarn Anti-Pilling, a #4 medium worsted weight yarn.


  • A crochet hook to match your chose yarn. Here I use a 5mm US Size H-8 crochet hook, my white Furls Odyssey.


  1. Once you have crocheted your last increase row it's time to decrease. Start here to learn C2C crochet.
  2. Do not start the first block with a chain 6, like you do to increase.
  3. Start every decrease row by slip stitching over to the turning chain, which is the ch 3 sp.
  4. Then work a regular block: Ch 3, work 3 dc in ch 3 sp, sl st to next block. Repeat regular blocks to end of the row. Work next c2c block as usual.
  5. Once you are at the end, sl st to last block to join. Do not work into this last ch 3 sp, turn.
  6. Slip stitch over 3, work a block and continue across.
  7. Keep repeating Steps 3 - 5 for every decrease row. Slip stitch over to chain space.
  8. To change colors at the beginning of a decrease row, sl st over to the ch 3 sp. Cut yarn of first color and join new yarn in new color with a sl st to ch 3 sp.
  9. Ch 3 and work 3 dc in the turning chain.
  10. Continue working in decrease pattern until you are down to the last one block row.
  11. Sl st last block to ch 3 sp.Last block on corner to corner square ready to join.
  12. Cut yarn and weave in ends.


Adding a single crochet border is an excellent idea on any C2C crochet piece.

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