How does the truck bed work?

[atx_ev]

Like most mid-size and small pickups, the bed walls have indentations to hold either 2x4 or 2x6 dimensional lumber to support 4x8 sheet goods above the wheel wells. In the case of the Slate it looks like either three (3) or four (4) 2x6 can be laid flat laterally across the bed to hold 4x8 sheet products above the wheel wells.

There looks to be front and rear vertical slots too. You can use those as dividers to keep stuff from sliding around, or mount things like bike wheel mounts onto the wood.