Originally Posted by
joym
Thanks for ur response. It is not the seam allowances.........there are only three pieces sewn together...each block is cut and sewn the same.....one goes horizontal and the other vertical....but when I turn the vertical one around to sew it to the horizontal one, it is always short....
Yep, it still sounds like the seam allowance is off. The horizontal side is just cut fabric with no seams, right, and the vertical side is the one with the seams? If your seams are just a tad too wide (easy enough to do), they use up too much fabric and leave your finished piece not wide enough.
I struggled with this for a long time. At times I even cut my pieces a few shades bigger, which helped, but made it hard to keep track of over the course of many pieces. Finally I adjusted my needle and guide to make me sew less than a quarter inch by a shade or two, and now my results are more accurate.