Interlocking Crochet Square January

Each month this year, I’ll be releasing a free interlocking crochet square. This month’s square is one of my favorites. I love how it looks like a quilt square, and I’m always a sucker for a good geometric design. All 12 squares will be worked in the round, and they will all include video tutorials.

*update* All 12 squares are now available free online – get more info here: Interlocking Tiles Blanket

*Disclosure: Some of the links in this post are affiliate links, which means if you click on them and make a purchase I may, at no additional cost to you, earn a commission. Read full disclosure here.

Interlocking Crochet Square Free Pattern - Interlocking crochet in the round with video tutorial, chart, and written pattern

You can get the free pattern below, or you can purchase a printable PDF copy of this pattern from Ravelry or Etsy using the links below!

Supplies

You can use any weight yarn and appropriate hook for these squares, though it will affect the finished size. For reference, my two samples were made in a Worsted or an Aran weight, both with an H hook, and the Aran ended up almost a full inch larger than the worsted. Here’s what I used:

  • WeCrochet’s Wool of the Andes Worsted in Gull and Calypso Heather, up to 30g each color (I was able to get two squares with one ball of each color, but I definitely played a little bit of yarn chicken toward the end of the second square).
  • Lovecrafts’ Paintbox Simply Aran in Mustard Yellow, Midnight Blue, and Stormy Gray (this is what I’m making the complete blanket out of – the squares measure closer to 10″ for me using this yarn)
  • Size H crochet hook – I love these Odyssey hooks from Furls Crochet!
  • Stitch Markers
  • Yarn/Tapestry Needle

Stitch Abbreviations

  • ch chain
  • st(s) stitch(es)
  • ss slip stitch
  • sc single crochet
  • dc double crochet
  • blsc back loop single crochet
  • fdc front double crochet
  • bdc back double crochet
  • fc front corner
  • bc back corner

Pattern Notes

This square uses interlocking crochet in the round. (This technique is also known as interwoven, intermeshing, or double filet crochet). In interlocking crochet, every dc has a ch1 between it and the next dc. Corner stitches will have a ch4 between dc’s. 

Except for the last row, each color only ever works into stitches of its own color. This effectively forms two meshes. The meshes are woven around each other as you work by changing whether you work stitches from the front of the work or the back of the work.

For an introduction to interlocking crochet, you can see this tutorial, though it is worked in rows rather than in the round.

There is also a complete video tutorial for this specific square (scroll down) in case you prefer video instruction. Each round in the instructions below also has a note telling what time in the video that round starts.

It is very important as you work to make sure that you are skipping the dc’s of the opposite color rows – 2dcs of the same color will always have a dc of the opposite color worked between them. 

I recommend that instead of making your turn ch at the start of the next row, you make it at the end of the previous row so that you can more easily place stitch markers and make sure your starting chains are in the correct location, either in the front or the back of the work (this is noted in the instructions).  Placing a stitch marker in the loop that would go on your hook when not in use will help to make sure you don’t accidentally unwind your work when not using that color.

Ch4’s at the start of a row count as either fdc or bdc (they count as the dc and the ch1)

There is a chart at the end of the PDF for you to use. There are two versions – one with letters written on to identify front or back stitches, with row markings in bold every other row, and one that is blank.

In my example, color A is blue, and color B is gray.

Special Stitches

Front Double Crochet (fdc): Working in front of the other color, double crochet into the dc on the same color row below, then ch1.

Back Double Crochet (bdc): Working behind the other color, double crochet into the dc on the same color row below, then ch1.

Front Corner (fc): Working in front of the other color, work (dc, ch4, dc, ch1) into the ch4 space of the same color row below.

Back Corner (bc): Working behind the other color, work (dc, ch4, dc, ch1) into the ch4 space of the same color row below.

YouTube Video Tutorial

How to Make the January Interlocking Crochet Square

If you like to work with charts, you can download two different versions of this chart. The first version is a blank, color-only chart. The second one has f or b written on each stitch to designate which type of stitch you are doing, as well as having every other row marked in bold to help you keep your place.

chart with notations
Chart without notations

0/1A (set up rounds) [Video 0:00]

With color A, make a magic ring (or ch3 and join to form a ring). In the ring, ch7 (counts as first dc and ch4),  dc, (ch1, dc, ch4, dc) 3 times, ch1, join to the third st of starting ch. Ch4, place stitch marker. (8dc and four ch4 spaces for corners).

With color B, ch8, join to form a ring, then ch4.

Starting from the front of your work, Insert the B color ring between the two A color dc’s, just to the right of the working yarn of A color. Your ring will be in the back, with your working B color yarn in the front. You may want to pin the ring in place with stitch markers until you have finished half of row 1B.

front view
back view

Round 1B [Video 4:14]

[place working yarn of color A to the front] Working with color B, in ring, fc, (fdc, fc) three times, join to third st of starting ch. Ch4, place a stitch marker. (12dc)

Image shows first stitch of the first corner – notice how you work in front of the blue chain but still work into the gray ring.
End of row 1B should look like this from the front

2A [Video 8:16]

[place color B in front] With A, bc, (fdc 2, bc) three times, fdc, join to 3rd st of starting ch. Ch4, place a stitch marker. (16dc)

2B [Video 12:00]

[place color A in back] With B, bdc, fc, (bdc, fdc, bdc, fc) three times, bdc, join to 3rd st of starting ch. Ch4, place a stitch marker. (20dc)

3A [Video 16:36]

[B in front] With A, fdc, bc, (fdc, bdc 2, fdc, bc) three times, fdc, bdc, join to 3rd st of starting ch. Ch4, place a stitch marker. (24dc)

3B [Video 20:38]

[A in back] With B, fdc, bdc, fc (bdc, fdc 3, bdc, fc) three times, bdc, fdc, join to 3rd st of starting ch. Ch4, place a stitch marker. (28dc)

4A [Video 25:24]

[B in back] With A, bdc, fdc, bc, (fdc, bdc 4, fdc, bc) three times, fdc, bdc 2, join to 3rd st of starting ch. Ch4, place a stitch marker (32dc)

4B [Video 30:17]

[A in front] With B, fdc 2, bdc, fc (bdc, fdc 2, bdc, fdc 2, bdc, fc) three times, bdc, fdc 2, join to 3rd st of starting ch. Ch4, place a stitch marker (36dc)

5A [Video 35:00]

[B in front] With A, bdc 2, fdc, bc, (fdc, bdc 2, fdc 2, bdc 2, fdc, bc) three times, fdc, bdc 2, fdc,  join to 3rd st of starting ch. Ch4, place a stitch marker (40dc)

5B [Video 40:46]

[A in back] With B, bdc, fdc 2, bdc, fc, (bdc, fdc 2, bdc, fdc, bdc, fdc 2, bdc, fc) three times, bdc, fdc 2, bdc,  join to 3rd st of starting ch. Ch4, place a stitch marker (44dc)

6A [Video 46:24]

[B in front] With A, fdc, bdc 2, fdc, bc ((fdc, bdc 2) three times, fdc, bc) three times, fdc, bdc 2, fdc, bdc,  join to 3rd st of starting ch. Ch4, place a stitch marker (48dc)

6B [Video 51:59]

[A in back] With B, fdc, bdc, fdc 2, bdc, fc (bdc, fdc 2, bdc, fdc 3, bdc, fdc 2, bdc, fc) three times, bdc, fdc 2, bdc, fdc,  join to 3rd st of starting ch. Ch4, place a stitch marker (52dc)

7A [Video 57:58]

[B in front] With A, bdc, fdc, bdc 2, fdc, bc, (fdc, bdc 2, fdc, bdc 4, fdc, bdc 2, fdc, bc) three times, fdc, bdc 2, fdc, bdc 2, join to 3rd st of starting ch. Ch4, place a stitch marker (56dc)

7B [Video 1:05:03]

[A in back] With B, (fdc, bdc) three times, fc, ((bdc, fdc) three times, fdc, (fdc, bdc) three times, fc) three times, (bdc, fdc) three times,  join to 3rd st of starting ch. Ch4, place a stitch marker (60dc)

8A [Video 1:12:14]

[B in front] With A, fdc, bdc, fdc 2, bdc, fdc, bc, (fdc, bdc, fdc 2, bdc, fdc, bdc 2, fdc, bdc, fdc 2, bdc, fdc, bc) three times, fdc, bdc, fdc 2, bdc, fdc, bdc,  join to 3rd st of starting ch. Ch4, place a stitch marker (64dc)

8B [Video 1:20:00]

[A in front] With B, (bdc, fdc) three times, bdc, fc [(bdc, fdc) 7 times, bdc, fc] three times, (bdc, fdc) three times, bdc,  join to 3rd st of starting ch. Ch3, place a stitch marker (68dc)

9A [Video 1:23:12]

[B in back] With A, bdc, fdc, bdc 2, fdc, bdc, fdc, fc, (fdc, bdc, fdc, bdc 2, fdc, bdc, fdc 2, bdc, fdc, bdc 2, fdc, bdc, fdc, fc) three times, fdc, bdc, fdc, bdc 2, fdc, bdc, fdc,  join to 3rd st of starting ch. Tie off A color. (72dc)

9B [Video 1:32:25]

This row is the last row of the square (hooray!). At the end of row 8B you should have done a ch3 instead of a ch4. Instead of making a chain between each double crochet, you are going to work blsc into the opposite color dc. So for this row, all dc’s are worked in pattern into the B color dc below, and all blsc’s are worked into the A color dc below. This connects the two colors and makes a smooth edge! 

Note: For this row only, do not do a chain after the dc for fdc and bdc stitches, since you will be doing blsc in between the dc’s.

Here’s row 9B: blsc, (fdc, blsc, bdc, blsc) three times, (fdc, blsc) twice.  To work corner – fdc over B color chain, sc over A color ch, fdc over B color chain, blsc over A color ch, dc over B color chain (there should be five stitches total over the corner), *blsc, (fdc, blsc) twice, (bdc, blsc, fdc, blsc) 7 times, fdc, blsc, work corner as above. Repeat from * twice more, blsc, (fdc, blsc) twice, (bdc, blsc, fdc, blsc) 3 times, join to top of starting ch, finish off and weave in ends.

Congratulations, you’re done with your January interlocking crochet square! Make a bunch into a unique blanket, or find other creative uses – below, I sewed two squares together to form a nice thick hot pad. I’d love to see your creations! (tag me @kickin_crochet on instagram!)

Two interlocking crochet squares sewn together to form a hot pad

Ready for another square? Check out the February Square! If you liked this interlocking crochet pattern, you may also like the Cobblestone Scarf Pattern or the Zigzag Cowl. Stay tuned for the rest of the squares – subscribe to the email list below to get notified when the latest squares are released!

This pattern and all associated images are copyrighted. If you would like to use this pattern in a roundup blog post, you may use 1 image and link to this blog post. You may not copy the pattern instructions. Thank you for supporting Kickin Crochet!

12 thoughts on “Interlocking Crochet Square January”

  1. Robin Quade

    I just love this concept, I first found it on the “Friendship CAL” by Sunflower Cottage. I’m still working on that one and am excited to get all of the other patterns. I consider myself to be an advanced crocheter and have enjoyed the challenge!!!
    Thank you for these free patterns,
    Robin Quade

  2. Kathleen Johnson

    Well that was certainly a challenge but finally got it! Love the result. Looking forward to tackling the February square. Comment above re: placement of starting chain 4 was helpful. I coloured in the chart with my two colours and that helped too! Thanks for this monthly “challenge”.

  3. Using the chart with notations ONLY (not looking at written instructions), is there an easy way to tell if the starting ch4 of colour A or B should be placed in the front or the back of the row?

    1. Yup! If you look at the next row of the chart, if the first stitch of the next row is in front, put the chain in front. If the first stitch is in back, put the chain in back. So if you’re working on row B, look at the first stitch for the following A row, which would be the stitch just left of the very center of the row. If you’re working on row A,look at the first stitch for the following B row, which would be the very center stitch of the row. Does that make sense? When I make these, I typically only use the charts, so it is definitely possible!

      1. Great thanks! I sort of worked that out after I asked but thanks for confirming!

  4. Thanks so much for the tutorial…beautiful square.

  5. Row 3 A has a mistake at the end of it.. [Video 16:36]
    [B in front] With A, fdc, bc, (fdc, bdc 2, fdc,
    bc) three times, bdc, fdc <<<< this should be fdc then bdc right? Thats what it shows in the video ps I emailed you about this too

    1. Hi Deb! I got your email and double checked – you were right! I’ve updated the post, double checked all the other rows, and updated the PDFs as well. Thank you so much (and sorry for the delayed response – I work nights so am typically asleep in the afternoon/evening).

  6. Stephanie Fricke

    Gorgeous! Simply gorgeous! I’m making this TODAY! Thanks for sharing.

Comments are closed.