Diagonal Knit Square, A Free Pattern

The diagonal knit square is the C2C (corner to corner) version of a knitted block (size depending on your pattern or item).

It is a super quick and easy pattern, especially if you don’t have enough time per day to spend on knitting.

Diagonal knit squares can be used to create blankets, throws or other homeware.  

The variations you can achieve with the pattern are multiple and modern.

Diagonal Knit Square Pattern by easyonthetongue.com  1024x1024 Diagonal Knit Square, A Free Pattern

pattern to knit the diagonal knit square

What you’ll need:

Contrasting yarn of your choice, colors A & B

Knitting Needles according to the thickness of your yarn

Blunt Needle / Embroidery Needle (stitching it together)

The Pattern

notes on the diagonal knit square

For the swatch in the image above, I used:

  • 5.5mm (UK – 5mm or US – 9) knitting needles and a 
  • boucle type yarn (medium/worsted/Afghan/Aran).

The dimensions of my square are:

7.5″ x 7.5″ or 19cm x 19 cm

  • It is almost impossible to get a mirrored version of the increase, kfb-stitch (on both sides).
  • In other patterns (such as dishcloths) the increase is achieved with yo (yarn over) between stitches.  This method leaves a small hole or opening, which I did not want.
  • Some patterns use: k1, kfb, knit to last 2 sts, kfb, k1 – this pattern creates a flatter first 2 stitches on the right side and a neat opposite edge on the left side.
  • In the pattern, I used 2 colors and alternated the colors each 20 rows (10 ridges in garter stitch).
  • You can also achieve an interesting pattern by using 2 colors for each half of the square (forming 2 identical triangles in different colors).
  • If you use yarn such a the boucle, the finishing is not really as important as the differences on the sides won’t be visible.
  • You can easily create a blanket using the pattern.  
  • After a few swatches, I preferred the pattern below.


k         –  knit

kfb     –  knit in front and back of the stitch (to increase)

k2tog –  knit 2 stitches together

st       –  st

sts     –  stitches


1 st Row – Cast on 2 sts

2 nd Row – Knit and every alternative row = knit


3 rd Row – KFB, knit to last st, KFB (4 sts)

5 th Row – KFB, knit to last st, KFB (6 sts)

7 th Row – KFB, knit to last st, KFB (8 sts)

9 th Row – KFB, knit to last st, KFB (10 sts)

10 th Row – knit

Change to color B

Repeat rows 2 and 3 until you have 40 sts on your needle (ending with the wrong side row) = 20 ridges

Change to color A

Rows 41 and 42: knit


Row 43 – k2tog (in back of loops), knit to last 2 sts, k2tog (in front loops) (38 sts)

Row 44 – knit 

Row 45 – k2tog (in back of loops), knit to last 2 sts, k2tog (in front loops) (36 sts)

Row 46 – knit

Repeat rows 45 and 46 x 7 more times

Change to color B

Row 61 – k2tog (in back of loops), knit to last 2 sts, k2tog (in front loops) (20sts)

Row 62 – knit

Repeat rows 61 and 62 x 9 more times

k2 tog, pull yarn through and work in ends.


Knit several squares and arrange it on a flat surface to create the design you want – for inspiration see the image below.

Stitch it together to form a throw or blanket – whatever shape you want to use it for.

Knit or crochet a border and there you have an easy and finished product.

Add some boho-fringes or a neat border, and be proud of your latest creation!

Happy Knitting!


Check out my Pinterest board on Blankets, throws and afghans here:

Amanda at Easy on the Tongue | Crochet & Knit | Machine Emb & DIYCrochet & Knitting – Throws, Blankets, AfghansFollow On

diagonal knit square fb knitsquare diagonalknit 1 1 Diagonal Knit Square, A Free Pattern

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