T-slot framing profiles combine to build carts, shelving, barriers, workstations, and other structures without requiring welding. The structures can be expanded or reconfigured as a facility's needs change. These extruded aluminum profiles have recessed T-slots that accept compatible connectors and fasteners. The connectors join profiles to create a frame for the structures. The fasteners allow hinges, panels, handles, and other parts to be attached to the profiles for customizing the structures.