A work truck is more than just a vehicle for a plumbing contractor--it's a mobile office, workshop, and supply cabinet. With jobs ranging from new construction to residential replacement or repair, a work truck or van, such as an upfitted cab chassis, has to safely carry the gear to be prepared. With enclosed vans and lockable boxes, plumbers can keep equipment and tools secure and out of the elements. Upfitted vans with shelves and bins make for an organized van for plumbers.