An accessory shelf for a roll container. The shelf includes a pivoting mechanism provided to the first end of the shelf for pivoting the shelf relative to to a frame profile of a first wall of the roll container between a horizontal load carrying configuration and a vertical folding configuration. Included in the shelf is a locking mechanism provided to the second end of the shelf to rest the shelf in a load carrying orientation against a second wall of the roll container. The locking mechanism is configured to engage a horizontal element of the first wall to suspend the shelf from the horizontal element when the shelf is in the vertical folding configuration. The pivoting mechanism includes two slide members that oppose each other at the first end and are shaped to at least partly envelop a vertical section of a frame profile of the first wall of the roll container to slide along corresponding opposing vertical sections of the frame profile The pivoting mechanism also includes an axle connected to at least one slide member extending towards the other hinge member to create an axis of revolution for the shelf. The pivoting mechanism further includes a limiter connected to the axle and rotatable about the axis of revolution relative to at least one slide member and to engage with a horizontal element of the first wall.