There is the circumstance that none of the proposed options for the producers, for which the characteristics are not satisfied with the owner and then the only exit, is self-installed aluminum attic stairs, but it will be exactly as necessary. In fact, the attic stairs with their hands – it is not an impossible task for a person who has a specific knowledge of construction. The distance between the rungs: great distance between stages significantly hinders climbing stairs, too little will make it not only inconvenient, but also dangerous.
The strength of the lateral and vertical beams, which determine what type of load the ladder can support. Angle at which the ladder will be installed (The best angle is 60-75 degrees). When increasing the angle of the ladder it stops being comfortable and safe, with a decrease it will occupy much more space and can not fit in the space assigned to it.
Stairs to the attic with their hands must meet specific requirements and it is necessary to remember during the operation, since the safety of their operation depends to a great extent on the application of these rules, and in case of fault failure but to myself, nobody will do .