Originally Posted by nycquilter
you didn't figure in the seam allowances. You lose lots of inches across the laid out blocks. Ask me how I know? doing what you did-- 8^) oh, yeah, and the quilting will shrink it a bit too.
You can look at a dozen quilt patterns for a twin and NONE of them will be the same size!! Sizes vary because of the actual size of the block and the width of the border(s). I made a quilt top for my best friend but when she put it on her queen size bed, she actually wanted a bedspread. So I added two more rows to make sure she was happy. I think it finally was closer to a size of a king. I would suggest piecing your blocks together because you can always change the widths of your border(s). GOOD LUCK !!