Abstract: A chair ladder in which the back of the chair is formed with a pair of spaced rods on either side of the chair seat with the rods pivotally interengaged with one another by a series of spaced, flat, rung-forming members which permit the back of the chair to function as a parallelogram and pivot to and from an upright, back position and an inclined parallelogram position in which the rungs extend between the rear and forward rods forming the rear legs.