Looking for idea on how to support my camper of truck?

MKish wrote:
All the interesting campers on Craigslist use cinder blocks. :)

(I have a dolly I can drop it on, mainly because I need a dolly. Otherwise my camper is fine on the jacks.)

I used cinder blocks before & wood, yet they are heavy & hard on the back & then when not under the camper take up too much space & once again as I said they are heavy to move around for storing.

I like the route I took & its just as a back up in case the jacks leak.