Since I put the larger tires on my trailer(that was another thread, went from a 185/80R13 to a 205/75R14), my spare tire no longer fit in the cage under the propane tanks. So its just been hanging out in the camper during drives and then I toss it outside while we are camping.
I stumbled across this randomly today watching a TFLTruck review of a trailer:
It seems pretty solid. I am 195 lbs and if i sit on the edge of the board while its flipped up there is a little sag, but laying on it and sitting on it normally is solid. The board is narrow enough that if you sit like normal your butt and weight is sitting right over the frame.