Double Crochet Mitered Square | Free Crochet Pattern | The Unraveled Mitten

Wow, block #20!! We are nearing the end! Today’s block you are going to learn how to crochet a double crochet mitered square. 

If you want more info about this crochet along: LOOK HERE.

I love seeing all your creative blocks in the crochet group on Facebook. Seriously the colors and modifications you all are making to suit your individual crochet styles are so awesome. If you aren’t a part of the club, you should join us, show off your squares and ask your questions, either I or one of the other talented crocheters in there are ready and willing to help.

If Instagram is more your style, don’t forget to tag me (@theunraveledmitten) in your pics and use #2019StashBustingCAL.

You can now pre-order the entire printable crochet along on Ravelry! You will automatically get the new ad-free pdf of each square pattern as it is released. Get it here!

What’s a mitered square?

Well, I’m glad you asked. We are basically going to crochet a corner! When its all said and done you will have a block that looks like 1/4 of a solid granny square. 

A mitered square can be made in a variety of different ways. From the inside corner out or the outer edge in. You can also use a variety of different stitches. For today’s block, we are using the double crochet stitch and working from the inside corner outward. 

The Use of Stitch Markers

I’ve been knitting quite a bit recently and a lot of knitting patterns use stitch markers integrated as part of the pattern. So it might say something like “knit it marker, do some sort of magic, knit to end of row.” I’ve adopted this concept for this crochet pattern.

After the first couple set up rows, you will see “dc to marker” This means just that! Dc in each stitch up to the marker. Then remove the marker and follow the instructions (don’t worry I tell you where to put it back in). Its easy peasy and I find it makes the whole experience more relaxing because you’re not stressing over stitch counts. Plus, instead of row by row instructions, I was able to condense this pattern down to a 2-row repeat.

Double Crochet Mitered Square | Free Crochet Pattern | The Unraveled Mitten

To block or not to block

Now lets talk blocking, my mitered square needed to be blocked badly. I had 2 sides about an inch shorter than the other two!

Since I used an acrylic yarn I had to steam block it. I had actually never done this before! It really worked too. I followed these instructions from A Crocheted Simplicity. But here’s the gist of it: Pin your project down in the desired shape and size (square, 12 inches), steam it with a garment steamer or steam iron keeping about 1/2 inch away from the project. Once it is damp and soft, let it dry.

Boom done, the whole process took about a half-hour (including drying time)

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Pattern Materials and Information

  • #4/Worsted Weight Yarn
  • 5.5mm crochet hook
  • Needle to weave in ends
  • Scissors
  • 1 stitch marker

Gauge and Sizing

  • Gauge: 6 dc x 4 rows = 2 in
  • Finished: 12 x 12 (after blocking)


  • I use US Terminology
  • Ch(s): chain(s)
  • St(s): Stitch(es)
  • Sc: single crochet
  • Dc: double crochet
  • Tr: Treble Crochet


  • Ch 3 counts as 1 dc
  • This pattern is worked in rows
  • Keep your turning chains loose.
  • Change color wherever you choose! I did 2 rows of each color so I could carry my yarn up the side.
  • You will increase by 4 stitches each row

Double Crochet Mitered Square | Free Crochet Pattern | The Unraveled Mitten

Dc Mitered Square Crochet Pattern

Row 1: Ch 4 (Counts as 1 ch and dc), 3dc in 4th ch from hook. Turn (4 sts)

Row 2: Ch 3, (2 dc, tr) in next st. (tr, place marker in top of tr, 2 dc) in next. Dc in last. Turn (8 sts)

Row 3: Ch 3, dc to marker, 3 dc in next, (dc, place marker in top of dc just made, 2 dc) in next, dc to end. Turn.

Row 4: Ch 3, dc to marker, (2 dc, tr) in next, (tr, place marker in top of tr, 2 dc) in next. Dc to end. Turn.

Repeat row 3 and 4 until your piece is about 11 inches (17 rows on sample). On last row do not turn.


Rnd 1: Ch 1, sc evenly around placing 3 sc in each corner st Join to top of 1st sc with sl st.

Repeat as needed until your square is 12 in. I did 2 rounds. Weave in ends and block if necessary.

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  1. Row 3: Ch 3, dc to marker, 3 dc in next 2 sts, place marker in top of last dc, dc to end. Turn.

    I’m confused. Are the increases supposed to be in the two center stitches? If so, the marker would be in the first dc in the second set in the above instructions, right? If not, you are increasing too early in the next row and that would throw off the square.


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