The invention relates to an aircraft floor (4), preferably a cockpit floor, this floor comprising a plurality of spars (14) running along a longitudinal direction (X) of the aircraft and a plurality of cross-beams (16) assembled to the spars and running along a transverse direction (Y) of the aircraft, the floor also comprising attachment means (64) used to assemble it to fuselage frames. According to the invention, the attachment means comprise a plurality of articulations (66) each connected to one end of one of the cross-beams (16), and enabling rotation about the (X) direction.