Best material to use for a cargo rack patio deck?

[Gcollin]

Howdy all, I just got a full size cargo rack Installed yesterday but I would like to put down some type of lightweight flooring so that I can set up a ground tent on top of the camper van, does anyone have any recommendations for a good option?

 

[WVI]

Do you happen to have a build thread on the top??
There's a plastic try that has been mentioned a few times on here. I believe they are for the bottom of rabbit hutches or some such.
That's what I was going to use on my van.

 

[VanWaLife]

It might be hard to beat the strength-to-weight ratio and cost of materials intended for stationary decks. You could set up crossbars of some sort (maybe steel or aluminum tubes) at 1' to 2' spacing and screw down some trex, or cedar decking, etc. Plywood with a vulkem 350/351 coating will also work great, but the vulkem is expensive.