Yup, two different methods. Awning rail and awning either roof or wall mount depending on the awning purchased, and the bracket method as with Carefree box awning I'm familiar with. Brackets are supplied with awning and require drilling completely thru the camper wall and backed with washers or thin plate inside the camper. These can be set up to attach anywhere along the awning itself. Thought about that long and hard and decided with our older, and I mean OLDER, camper I trusted the security of actually having the awning's complete length being supported by the rail system rather than who knows how strong of wall construction. The height of the awning from the ground on way taller new basement model campers and new trucks can cut down on the available shade/rain protection and require pitch adjustment on the awning, if that's even an option. One thing you can do is find wall studs as mentioned in another response and mount the thing lower on the wall if side wall obstructions permit. Just be super sure of your measurements, length and drop of the awning case down from the rail or brackets and wiring that might be behind there. Wish manufacturers supplied wiring diagrams in the paper package that comes with new campers. Sure would take some of the question marks off the list of what ifs in those walls.
