A fabricated structural component for skeletal framework of structures, having five substantially planar faces corresponding to five faces of an elongated rectangular prism, namely a front face, two side faces and two end faces, the component comprising two elongate rolled steel angle elements (10), and a plurality of discrete spacers (13, 14) extending between the angle elements, and end elements (16). Each flange of the angle element (10) is pierced by a plurality of equi-distanced fastener clearance holes (15), and the end elements (16) are pierced by two fastener clearance holes.