Thangles are sold by the finished size and that means the size AFTER the quilt is sewn together. For
example, 3” Thangles will make a half square triangle that measures 3 ½” square before it is sewn into
the quilt and 3” after. Another way to think of it is that the raw or unfinished size equals the finished
size PLUS ½” for the seam allowances.