Going to a larger awning?

[MCJ]

So our awning was ruined in a storm. The fabric was on its last legs, but now the metal frames and roller need replacing.

Original was 17’. Anyone have experience going with a larger awning (like a foot or two)? My concern would be that there are factory reinforcements for the 17’ but not anything larger.

Thanks

2012 Prowler 29p rks.