Pulpwood is not a specific type of wood, but actually tree limbs that are cut to a specified length, then turned into wood pulp and used in the paper industry. Early paper making had the trees near the paper plant. As timber resources were diminished, the need for transporting pulpwood began to rise. Railroads were seen as an efficient method of transporting pulpwood. Pulpwood in the Southeast and Northeast is generally cut into four-foot or less lengths and loaded onto "V-deck" bulkhead flat cars. The Atlas pulpwood flat is a reproduction of an early 1950s General Steel Castings "V-deck" design.