Originally Posted by Intalleyvision
Ok so onto bolting. The wings on my ribs aren't very long, so bolting through those may be tricky. Would it be fine to just bolt the interior/sides of the hat channel to the rib? Also what about attaching those rectangular tubes from one side since I already have them? Overkill/unnecessary? It would make riveting the sheet metal on easier, because I could blind rivet through the tubes. just a thought!
Mostly just focused on the stability of just bolting down the interior side of the hat channel/rib
If you don't have room to bolt through the outsides of the ribs, they were made wrong / too small.
For temporary holding before adding the outside skin, yes I mostly added bolts to the inside of the ribs.
For a finished product, the bolts or rivets need to be in the outside flange of the ribs / hat channel.
Because I strapped the inside of the bus, I have bolts in both the inside and the outside flanges of the ribs. Most are in the outside flange where they belong.