A dolly bar storing assembly (30) for storing an elongated dolly bar (10). The dolly bar storing assembly (30) rollingly supports two side walls (16, 17) of the dolly bar (10) which intersect along a common edge (18) in an orientation where both side walls (16, 17) are inclined relative a horizontal plane with the common edge (18) inclined downwardly. The storing assembly (30) provides rolling support and stability of the dolly bar (10) during installation and removal from the storing assembly (30). The dolly bar (10) storing assembly includes a frame (32, 32') for longitudinally supporting the dolly bar (10) and a roller mechanism (50, 50') mounted to the frame (32, 32') to provide rolling support of the dolly bar (10) longitudinally therealong relative the frame (32, 32'). The rolling mechanism supports the dolly bar (10) in a stable orientation longitudinally while further being formed to support the dolly bar (10) during rotation of the dolly bar (10) about the longitudinal axis of the dolly bar (10) between an installing position and a storing position.