Selection of patterns for the rim
overall size of your shawl you will need to add, or subtract, rows two at a time. This will keep the patterns in the border intact, though it will affect the number of times each sequence will need to be repeated along each side of.
lovecrochetcom: “Crochet Club: free crochet edging tutorial with Kate Eastwood of Just Pootling!
Crochet - a graceful banding edge and rim