A seating furniture chassis including: a lever mechanism (2) for raising and lowering a seat face of a seating furniture item; a connecting mechanism (4) for connecting the lever mechanism (2) to the seat face; and a drive mechanism (3) for actuating the lever mechanism (2). A plane is defined by way of the connecting mechanism (4), in which plane the seat face lies in the mounted state. The seating furniture chassis (1) has a clearance below the plane, which clearance is free from the lever mechanism (2) and the drive mechanism (3). A footrest of the seating furniture item is pivotable into the clearance.