Nothing at all about static loads, but with me at 250, the wife and 2 kids in it, there was zero flex or movement observable on the shell or the internal frame while the kids played around in it. I felt no movement in the floor or truck with all of us in the tent moving around and setting up beds. The frame is boxed T-channel so I expect it to be very rigid and solid. It's not half-assed by any means, which is nice.
It's very solid, and I've been checking the clamps and bolts now after rougher roads and there is nothing moving.