The invention relates to a rope storage unit, comprising a rope reel, formed by a rope wound in a spiral form and having a central axis, and delimiting a central space inside the rope reel, the rope having an end protruding from the inner rim of the rope reel; and a support body provided with an inner space inside which the rope reel is positioned, the support body comprising a side face plate, which side face plate delimits the inner space in axial direction of the rope reel and comprises an opening extending through it; and a guide collar for guiding the rope end away from the central space without contacting the side face plate, which guide collar is mounted on the side plate and borders the opening thereof, the guide collar delimiting a guide opening that leads away from the central space of the rope reel. The invention relates to a method for installing an elevator rope implementing said rope storage unit.