This is a Staircase tower Structure with dimensions; 4 meters center to center of column bases defining length and 2.5 meters center to center of the column bases defining width of the staircase,it towers up-to 60 meters high,this type of staircases is ideal for Cement industries especially when it comes to accessing Silo cement roof tops.This model is usable on actual work and it is ideal for Tekla Structures learners who requires Models for practicing and learning purposes.