When we were ordering our trailer back in 08 , we were specing it out with the factory rep at an open house.
We were trying to decide the cut off point for factory installed options.. She told us that if we wanted that awning we need to have it done during the build.. They in fact pack out the slide walls with wood so the awning rail hardware has something to bite into..
Now , that was KZ , and can assume that most others do the same?
BTW- we ordered it and will probably never go without again,,,, almost the entire side of the camper is awning .. We put the table under one...and the chairs and stuff under the other..
Here is ours with both awnings out... Before setting any chairs out...
Me-Her-the kids
2020 Ford F350 SD 6.7
2020 Redwood 3991RD Garnet