A support structure is disclosed that allows additional weight to be supported. The support structure includes a shelf beam that includes a horizontal beam and a vertical bar. The vertical bar attaches to a vertical column using a fastening mechanism. In addition, the vertical bar includes a channel that corresponds to a protrusion on the vertical column. When the shelf beam and the vertical column are fastened to each other, the protrusion of the vertical column mates with the channel of the vertical bar of the shelf beam. As a result of the protrusion and the channel mating with each other, weight or pressure that is exerted on the horizontal beam is transferred, absorbed and/or supported by the support structure, thereby allowing additional weight to be supported by the support structure.