Member III
They are very simple yet strong these shelves are rated at hundreds of pounds most hardware stores have them. We have a kitchen supply store in Reno that carries them in a wide range of sizes and you can buy them one shelf at a time. The only cutting is the poles and I drill holes through the mounting points and put a screw in it to keep the poles from falling out when lifted. In the Tahoe I have seat mounts on the floor and use two ratchet straps to hold it in place. You could also use turn buckles to hold it down.That's a nice, simple but usable setup. I like it. I've been thinking about sleeping platform options for my WJ, and I think I tend to over-think it a LOT and let my mind run wild with crazy setups.
-TJ
I use the carpet to close up the slots to keep small things from falling through and to make it more comfortable moving around on it. I just zip tie the carpet in place.