Please lay out your future quilts flat, never folded, and use a 12" or 15" square ruler to square the corners, moving up the sides with a 6"x24" ruler. Then carefully measure the width of the quilt through its middle and the length also through the middle. These measurements wil give you the precise length and width of the borders, top, bottom and sides. You will be happy with the results. Check out the YouTube tutorials for a lot of info on attaching borders, etc., I like Missouri Star Quilt Shop tutes the best. :thumbup: :thumbup: