My slideout floor broke loose previously while under warranty and was repaired with longer screws that went through both sides of the aluminum frame. This was done while under warranty. My warranty is now out and it broke loose again, only this time it turns out it was the welds in the slide frame. I have concluded that the weight of the sleeper/sofa is bouncing while traveling, working like a sledge hammer on the floor when the slide is all the way in. If your slide is like mine you can lift the carpet and see that the slide sets about a 1/2 to 3/4 inch above the floor with no support at the front corners while traveling. I have repaired this by plating with screws and made wooden blocks to place under the corners while traveling to prevent this in the future. See the pictures and it will clarify what I'm saying. Pictures will show the broken welds, how I plated and screwed to repair, and the piece of 3/4 plywood used under the corner to support the floor while traveling after the repair. If you have this type of flush floor slideout, which I assume most do, it would be wise to shim under each corner when traveling. It was not an easy repair to do in such a confined area and would be very costly to do at an RV facility. I hope this post will help someone else avoid this from happening.