Briefly, the invention involves a transportable storage box, e.g. job box, for heavy duty applications. The job box provides an indoor or outdoor storage enclosure for homeowners and professionals to keep tools, sports equipment or other items clean and dry. The job box is constructed for stackable cooperation with like constructed job boxes. The job box includes rigid metal handles at each end for increased weight capacity and is sized to fit between the wheel wells in the bed of a pickup truck.