I made each square separately and on the and I sew them all together. Each square’s size is 20x20 cm. I used 3,5 mm straight needles. I used for all squares garter stitch.

The only minus I observed was the weight of balnket - it was heavier than I thought it will be..anyway it was very warm and could be used not only as a blanket but also as a some kind of baby floor matt or warm “carpet”.