The same stair assembly can be used as a stair or a ship’s ladder depending on incline angle.
Range values shown are for bolt-down models. If using the freestanding base model, add 2″ to all height values.
At highest measurement, an additional 9.25″ of height can be accommodated as a step-up to landing level. 9.25″ is the maximum allowable step-up distance from the top stair tread.