The invention relates to a bearing frame for a panel, of the type comprising a peripheral structure (1, 1′) for receiving a panel (20), including at least three mounts (2, 3, 4, 5, 2′, 3′, 4′, 5′) defining a frame in which the lower face defines a reference plane (P, P′), in which at least one mount (2, 5; 5) includes a wing (90,100; 90′) extending on the entire length thereof towards the outside of the frame in parallel with the upper face of the frame, the frame comprising at least one precut metal strip (30) stamped, folded and assembled by welding, in particular laser welding, characterised in that the peripheral structure (1, 1′) is hollow and in that it further comprises inner and outer connection means (14, 16, 17) and an electric linking means (18) between the inner and outer connection means, provided inside the hollow peripheral structure.