Shellpack, thanks for your response. Out of 160+ readers the only one with actual expierience. Do you have an idea why the floor fell out? Due to age (rotten wood f.e.), or using it without support? Are the campers still built the same way as 40 years ago? The "floor pac" you mentioned, are those the beams that run from side to side (sort of between the actual camper floor and the truck bed)? Is the actual floor really "only stapled" to the camper structure and do you know in what (is it stapled to the aluminum frame and do you think it could be reinforced by ading screws? The reason for my questions is: We (two adults) have used our very heavy loaded Grandby as a stand alone for about 4 weeks in the last two years (fulltime living in our FWC). Two of those weeks we mostly only slept in it, the other two weeks we "lived" in it as we always do. So far no problems. In Germany we looked at a couple of FWC at an expo and i once counted five adults in a flatbed resting "only" on its jacks. The german dealer said a suport wouldn`t be necessary. When we picked up our new camper in the states, us two and the dealer were in the camper "jacks only" - "no problem if you don`t hop around"