We have found that when you install the blue vinyl beltline, it helps to leave it a foot or so long, and let it acclimate then trim it in about a week and rivet it in place. This has worked for us so far. Also, watch stretching during installation, especially around the corners. We use a screening tool to work it into the channell which makes it much easier. We may have an extra 5 or so feet hanging around. We will check and let you know on Sunday. If we do , it's yours for the shipping!