This invention relates to a floor (4) for an aircraft, and 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) for assembly onto a sealed bottom (68) of the aircraft. According to the invention, the attachment means comprise a plurality of fasteners (66) each comprising at least one junction element with two opposite ends, each of the two opposite ends being articulated about an axis parallel to the (Y) direction.