Slidable steel stair

The utility model discloses a slidable steel stair which comprises a steel stair beam, baffles are symmetrically and fixedly connected to the two sides of the steel stair beam, the middle of the steel stair beam is connected with a stair section, the upper end of the steel stair beam is connected with an upper platform, the lower end of the steel stair beam is connected with a lower platform, the upper platform comprises an upper table top, the two sides of the upper table top are connected with the steel stair beam, and the upper portion of the steel stair beam abuts against an upper steel beam. The steel ladder beams are connected with the upper steel beams through first sliding mechanisms, the lower platform comprises a lower platform face, the two sides of the lower platform face are connected with the steel ladder beams, the lower portions of the steel ladder beams abut against the lower steel beams, and the steel ladder beams are connected with the lower steel beams through second sliding mechanisms. Al