KQ:
Wow...and I always thought everyone always wanted a "bigger" one!
You've obviously got a special request here, and therefore, a special circumstance...are you trying to add an additional awning next to the one you've already got? I'm assuming you're talking length...meaning how much it takes up against the side of your rig...if you're tlaking about width (meaning how much it rolls out), then I'd say just don't roll it out as far (depending, of course, on the model you have).
You got more?
Sean