Quote Originally Posted by coffeebreak View Post
But my question is...why? If you used a square template and rotary cut the square, sewed 1/4" seam lines all around...shouldn't your square be square and the size you measured for? This is one of those little things that has bugged me so bad (doesn't make common sense!) and odds are if I could get over it I'd not hate squares so much!
Because often your cutting isn't accurate, the templates slip just a bit. Your 1/4" seams aren't always exactly a 1/4". It's a whole lot easier to square the final block than measure every seam each time you sew it. No one is perfect.