Tailgate for loading areas of heavy goods vehicles and/or trailers

The rear door (1) has door leaf (3) connected to long side (7) of lorry (2) through hinge (10) in use position (4), which includes inner side (16) to cover cargo holding opening at rear side (6) of lorry in original closed position (9). The door leaf includes outer side (5) with which the door leaf is swingable around a rotational axis (12) at a range of 270[deg] against long side, to open position (8). The door leaf made of fiber reinforced plastic material, is bent at the outer side by closure end (17) with respect to outer edge of holding opening in fully open position.