How minimal of clearance is okay between cab and cabover?

RichieC wrote:

Reddog1 wrote:
. . .I tried the dense foam, but did not like it. The normal rocking of the TC side to side beat down the foam at the edges of the TC. Not a major problem, but it also was an issue to store when I unloaded the TC. I tried several methods to raise the TC. I prefer to use 2x4's or 4x4's side to side in the bed of the truck. Kiln dried prefered simply because the pieces are lighter, easier to load.

Wayne

I haven't tried foam board yet but thought that I'd hot glue it (or double stick tape it) to the bottom of the camper.

I really do not see how the hot glue will prevent the foam from compressing at the edges of the TC. Push your fingernail into a styrofoam cup and you will see what I mean. When going around a turn, going down a driveway to the street, gusty side wind, anything that causes the TC to rock side to side will compress the foam board.

It does not compress in one day, but every time you use the TC, it compresses more. The concentrated weight of the TC is far more at the bottom edges than in the center of the floor.