Originally Posted by Tango
When I said "mounting pads", I was referring to any kind of home-made bracket that the rest of the deck could be then attached to. Either steel or aluminum, bolted or welded. As long as those components are secured to the ribs, the rest of the deck will be solid too.
And as for mounting anything lower, you just wind up with a wider vehicle that has more hanging out in the wind and more weight overall.
IMHO...the deck and mounting system need to be well engineered and as light as possible to fulfill whatever task is assigned. Example: if all that will ever go up there are a couple of solar panels or an occasional plastic kayak...you can get away with a very lightweight structure. If you host roof-top NASCAR parties for 50 to 60 alcoholic friends and the associated coolers and dancing...well, that's a whole' nuther story and whole different design.
Decide how you expect to use it most and engineer it to it's primary task.
Got ya. Thanks for the clarification. Ya it will really be just for the 2 of us to go up and hang out on as well as storage.
Thanks for the tips starting to look @ unistrut rooftop walkway
looking at other options as well. Will keep you guys updated.