A tool supporting bar comprising an elongated tubular perimeter wall defining an interior and including first and second perimeter wall portions. Each perimeter wall portion includes a first side wall portion and sections of two other side wall portions each extending from the first side wall portion. Each perimeter wall portion may be substantially U-shaped and positioned in opposition to each other, with the two perimeter wall portions being connected together. At least one reinforcing wall may be located in the interior and attached to the first side wall portion of one of the perimeter wall portions. Embodiments with the reinforcing wall attached to the exterior of the perimeter wall are also described.
