The column location of the 2.5x6.3m staircase is given in this drawing model. Totally four columns are provided. The dimension of each column is 40x60cm. On each floor, the electrical point, gas line, telephone lines are given. The length and breadth of the staircase is 2.5m and 6.3m respectively. The numbers of staircase are given in this drawing. For more details download the AutoCAD drawing file from our Cadbull website.