WEBBING QUESTION - I want to put some kind of material between the frame and bed to lift the bed and boxes 1/4" and act as webbing. I need a webbing anyway and the 1/4" lift will fix a running board to box bottom alignment issue. I was thinking of using 1/4" thick rubber. Is there a better material choice than rubber that is 1/4" thick? How do I hold it in place so it does not shift location? Is wood a better option? Any thoughts?