Heavy Rubber Bed Mat?

[Stocker]

Not sure if this should be here or in General Discussion...

I have a hard plastic (slippery) drop-in bedliner in my truck, and have been thinking recently of adding a bed mat. I started looking online and found some that say they'll fit '67-'87. Then I got to wondering if anyone has improvised with anything -- for instance, an 8' length of 4' wide conveyor belt (does such a thing even exist?). Or is there something else out there that anyone has used? I'll be throwing chainsaws, firewood, garbage cans, dogs and who knows what else on it so it'll need to be tough & durable, and of course not rot from constant exposure.