Here is a problem we were having with our 2021 260RD. I want to say at this time that Grand Design was willing to take my rig back to the factory to come up with a repair and possibly replace the entire side wall. I wasn’t comfortable with that nor did I want to have all those miles put on my rig and be without for who knows how long so I fixed it myself. Our wall is straight and solid now and the slide works much better, smoother and the repair looks like it belongs there.
Here is a link to a video of the bow in the wall with the slide out extended. I have an extendable level from the top of the wall to the base of the wall and I have 1” bow in the wall caused by the cantilever weight of the slide out on the wall.

https://www.youtube.com/watch?v=r3GJ...ature=youtu.be

The slideout always looked out of plumb with the wall so I started looking at this more closely. Here is what I found.
I was standing in the hallway on the top of the stairs and noticed the whole wall was bowing out around the slideout. If you look down the wall towards the rear of the slide you can see a big bow in the wall. It is very obvious when you’re looking for it.

I measured the width of the opening for the hallway at the floor by the bottom of the stairs and it was 27”. Then measured it at the top by the ceiling and it was 27” but when I measured the opening at the top of slideout it was 28”. The wall is bowing out 1 full inch!!

Next, I brought the slide in all the way and measured the opening again at the top of the slideout again and it was 27.25” so the wall flexed ¾” just by moving the slide in. This is way too much movement. All my measurements were done with an empty fridge and I would think they would be compounded with 100 pounds or so of food in the fridge and freezer. Here is a link to what the repair looks like from the inside.

https://www.youtube.com/watch?v=KJtUBtcGYac

I have a detailed material list and step by step instructions as to how to do this repair. I feel this is a much better repair than what GD would have done and they reimbursed me for all my materials and it didn’t void my structural warranty. I did not want my wall replaced, that would have just opened up another can of worms and besides I’m extremely comfortable with my repair. I am a retired architect and home builder and had no problem doing this repair.

Chip