Telescopic grandstand certified according to the regulations and DM in force at 500 kg / m2. Supporting structure in steel of appropriate section, sliding wheels in polyamide, walking surfaces in class 1 fireproof plywood, fronts in fireproof wooden material, side and rear parapets height 110 cm which always remain in position without having to be removed when closing. Seats with a choice of polypropylene seats or completely wooden. Manual locking and unlocking system that can be easily operated by means of a retractable handle. Tread 70/75 cm raised 34/38 cm for a maximum depth in closed position of 130 cm. Possibility of motorization of the grandstand with self-centering motors.