I am about to start building underbody storage for my bus. I have the general layout (in my head) for how I am going to do it. I have taped out the areas that I need to cut out in order to do it the way I want to:
I am going to move the cabinet that is there already backwards to make room for a larger compartment, that is the smaller rectangle taped in the back.
So basically, at 27" on center, there are the ribs of the bus:
They appear to run all the way around the roof and down to the other side. When I had the bus apart, it looked like they were welded to a substantial piece of steel by the floor that ran the length of the bus, not to mention how many rivets hold them together. Would it be alright to cut the rectangles through these, as long as I riveted or bolted the frames for the underbody storage (making out of angle steel, like a picture frame around the opening) to these supports?
I am not a structural expert but it seems to me like that should be fine as there is a thick piece of steel running along the bottom of the skirt, and as long as I rivet or bolt the frame for the compartment opening on rather well, it should be fine, right?
To anyone whose bus has this storage from the factory, how is it done on that?