Every thermal insulated door curtain has an overcast seam by design. You can easily alter the size of your curtains to fit your windows because all curtains come with iron-on hemming tape. As we must warn you, sometimes with excessive heat, the glue on the strip is not strong enough and the strip can come off. We advise you to simply sew a few stitches on the ends of the adhesive strip to prevent it from coming loose from the curtain. Unfortunately, the patio door panels fabric will be harmed if we use stronger glue on the strip. For more details please visit https://www.thermalwindowcurtains.com/ or call 540-214-0678

image