Im not a truck person, but if someone actually uses their truck to haul shit around then that is by definition not a pavement princess.
A pavement princess is a truck or an offroad vehicle that is never used for any of the purposes it was engineered for, like hauling shit or driving offroad.
Also, hauling lumber with a truck is infinitely better than the dumb shit people do to haul lumber otherwise, simply because theyre too lazy to rent a truck for a day. The other week I saw someone with a few 12ft pieces of lumber sticking 6ft up and out the sunroof of their audi a4. Just fuckin rent an appropriate vehicle, its not that hard