I recommend plasticote bedliner over the duplicolor..its usually about $40 a gallon, and a LOT more durable. Herculiner would be better for use in the bed, but the cab floor wont see the kind of abuse the bed floor usually will. My plasticote bedliner wasn't on thick enough, but it held up to most of what I've thrown at it EXCEPT chainsaw teeth on our Stihl 660 w/ a 5 ft bar, and it didn't hold up to the engine that fell over and gouged a small chunk out where it dented the bed floor a little.