Folding mezzanine ladders are ratcheted into climbing angle and back into stored position. The wheels roll on the ground when ratcheted and the handrails mechanically rise into climb position when ladder locks into position. The ladder installs quickly with mounting bracket provided for bolt-on instillation or welded instillation. Steps are 24 1/4" wide. Collapsed distance from wall is approximately 15 1/2" for all models. Product ships unassembled with minimal assembly required. Ladder is finished with nice powder coat blue finish for added toughness.