I cut out four 4x6x12, four 2x6x12, two chocks out of rough 6x6 redwood.
[img]

[/img]
Then I built this box. It fits under my tonneau cover on the pickup. There is just not enough room in my little 20fq for leveling blocks
[img]

[/img]
They all fit in just like this. The rope grabs are a nice feature so you can grab 4 or 5 at once to disburse them around the coach[img]

[/img]
Since I built this set up in 2016, I've not needed any other type leveling materials. I am pretty selective about my sites when boon docking though. I keep one set of Lego's just in case. The redwood is super light when it dries out. Durable enough since there are few if any knots.