Originally Posted by Prism99

Most of use scant 1/4-inch seams because we know that "turn-of-the-cloth" will take up some of the seam allowance when ironing the seamed pieces. This takes away some of the measurement from the finished block. You actually get more actual "finished size" blocks by using a scan 1/4-inch seam than a full 1/4-inch seam from the cut edge.