Abstract: A present application is directed to a shelving system having a coupling system comprising a tab coupler and a socket coupler, said tab coupler comprising a locking tab extending from a locking face along a locking axis and configured with a round, T-like sectioned shape; said socket coupler comprising a U-shaped locking socket projecting from a mounting face of the socket coupler along a coupler axis and configured with a U-shaped tab arresting groove; the coupling system is configurable between an unlocked position whereat the locking socket slidingly receives the locking tab so that the locking axis and the coupler axis coincide, and a locked position upon rotating one of the tab coupler and the socket coupler about the coinciding axes, entailing snugly arresting of the locking tab by the locking socket, preventing sliding displacement and axial displacement along the coinciding axes.