During the construction of the building, we need to design the staircase for the multistorey buildings. In this case, we are designing a dog-legged staircase design for a residential building. For residential building, there is a dimension guideline: 1. Height of Rise = 150mm to 170mm. 2. Width of tread = 220mm to 270mm. 3. … Read more Dog-legged Staircase Design for a residential building.