The structural core of the Production Basics system, these rugged steel workstation frames feature open channels for the attachment of work bench components and 48" accessories. This double-sided configuration interconnects to form an infinite combination of floor plans. Frame consists of four (4) welded vertical 12-gauge unistrut channels and two (2) horizontal 14-gauge steel tubes for rigidity. Micro-adjusting leg levelers ensure firm placements on uneven surfaces.