3 DC Shell Stitch Pattern
Foundation Row: 100 Chains
Row 1: 100 single crochet
Row 2: 2 dc, 3 double crochets in the 3rd chain, skip 2 chains 3 double crochets in 1 chain Continue till the end of the row
Row 3: 3 dc, 3 double crochets in a 3 dc cluster
Continue the pattern until you reach the ratio of 3:1
Edge with single crochet