Aluminum companies all over the world introduced stair system unit which is designed to allow safe access between floors during construction/decorate home interior or exterior.Construction eliminates which use of ladders, making the movement of materials and tools between floors an easy and safe operation. The lightweight stair system single piece unit is constructed from aluminum for a quick and simple installation. It,s speeds up productivity, reduces accidents on site, and also improves overall welfare and efficiency. An optional extended landing platform is also available to enable the unit to achieve a greater span over voids in town houses etc etc .