[EricH]

Originally Posted by qwertyuiop[]\

Does the back have to be completely covered? we are planning just to bolt our bumpers on to the second layer of our 8020 frame.
_________________ second layer
|_______|________| first layer

You should be fine. If you really want to be sure, ask Q&A.

<R08> M says length, not height or back. If they had wanted the entire back covered, they would probably have said so.