Bed floor options

[Derek.Matirne]

Ok guys, I am in need of some help.... The floor in the bed of my truck needs some help, it has a plywood floor with diamond plated metal on top of it, which I do not like, because the wood has rotted out, and I am not in favor of a wood bed neither..... It will get a spray in bed liner, so I don't really care what materials is on the floor, but I don't want it rotting out from under the bed liner.... Do you guys have any ideas, or seen anything that is strong and long lasting? Thanks