Two more ways to join Granny Squares.

Chain Seam– With right sides of Granny Squares facing up and lying next to each other, attach yarn to corner stitch of one Granny Square and sc in same stitch, *ch 3, sc in corresponding st of other Granny Square, ch 3, skip 1 st on 1st Granny Square, sc in next st; repeat from * across edge, creating an open, lacy seam.

Dc2tog - With right sides of Granny Squares facing up and lying next to each other, attach yarn in corner st, yo, insert hook in same st, *yo, pull through, yo, pull through 2 loops on hook, yo, insert hook in corresponding st on other Granny Square, yo, pull through, yo, pull through 2 loops on hook, yo, pull through 3 loops on hook, skip 1 st on the 1st Granny Square, yo, insert hook in next st; repeat from * across edge. You are making a half dc on one Granny Square, a half dc on the other Granny Square and uniting them when the 2nd dc is completed.

Video – Simple & Sensational™ - #4 Join Granny Squares with Chain Seam and Dc2tog