I'll try to get some pictures up tonight but it's the "floating" style like in your picture. I would want it to look like it came with the camper or at least close to that. I was wondering if I could run 1x2's under the outsides of it securing those to the studs if that would be enough. I would paint them to match so they wouldn't stick out. Not sure how they get their ratings or what differences there are in how they mount to increase the ratings. We had looked at some before buying this one that were rated to 250. That would be ideal....I'm just not sure what the differences are in how they're mounted. I may try to send another email to KZ but I really wouldn't expect much in the way of information. Maybe though they have a higher rated bunk and I could ask what the differences were.