We are currently in the process of replacing all the old steel grid mesh walkways / stairs / platforms etc at work with FRP (fibreglass reinforced plastic) mesh. Very strong, won't corrode, and not all that heavy.
We buy it in sheets and cut to suit requirements, so plenty of off-cuts. [biggrin]
https://www.aulro.com/afvb/images/im...2017/09/88.jpg
I've got a couple of lengths of it in the back of the work ute, and a couple more in my trailer. Don't think I'd go as far as bolting a couple up on the roof of the Disco [bigsmile] - but I've got plenty of the stuff for when we go out in the bush - usually have the trailer on to bring back firewood etc.
Cheaper then buying Maxtrax or Treadz and work just as well for my requirements. So far - have only ever used them under the trailer though to reverse it in through some soft ground to get closer to a tree I had just cut into blocks.