If I am understanding you correctly, you are asking about the "borders" you want to put on the wall hanging?? Measure the wall hanging thru the middle of it, top to bottom, this is the length to cut yur side borders. Then after that is attached, measure across the middle to get the length to cut your top and bottom borders. By measuring thru the middle and not on the edge, you get a more accurate measurement. Then pin each end, then the middle, then ease in if it needs... pin well before sewing. Good luck, and don't forget to post a picture to share with us.