T-slot framing systems consist of extruded aluminum profiles and other parts that 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. Profiles have recessed T-slots, and they accept compatible fasteners and connectors. Fasteners attach hinges, panels, handles, and other parts to the profiles for customizing T-slot framing structures. Connectors join profiles to create T-slot framing structures.