A frame for attachment to the periphery of a panel having a main portion, a surrounding wall designed to surround an edge of the panel, and attachment means for attaching the frame relative to the panel having at least one locking element, the locking element being connected to the main portion by a hinge and being movable relative to the main portion between an open position, in which the panel is capable of being inserted into the surrounding wall without interaction with the locking element, and a closed position, in which, when the surrounding wall surrounds the edge of the panel, the locking element is facing a main face of the panel.