Hi Lisa
I've never done it myself but I would cosider looking up a local awning/sign company that might be willing to do that for you. I never thought about shortening the awning on my trailer. Not that I would but if your are going to do this yourself, at least consault with an awning company. I'm going to do a little research (as I work for a sign company and I used to sell awnings as well but not the awnings that are on trailers.) I'll get back to you in a couple of days. hopefully I'll some info for you.
I've never done it myself but I would cosider looking up a local awning/sign company that might be willing to do that for you. I never thought about shortening the awning on my trailer. Not that I would but if your are going to do this yourself, at least consault with an awning company. I'm going to do a little research (as I work for a sign company and I used to sell awnings as well but not the awnings that are on trailers.) I'll get back to you in a couple of days. hopefully I'll some info for you.