finished size (12 inches) divided by 3 (small sq per side)= 4 inches (finished) + 1/2 inch (1/4 inch seam allowance for each side. = 4 1/2 inches . I would suggest doing one sample block to make sure your cut blocks and your seam allowance fit your snowball block...
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Last edited by soccertxi; 07-04-2018 at 08:04 AM.