The glass floor is analysed by Finite Element Method (FEM) to determine the required thickness of the glass. The concept design for glass floor uses the layer of glass to be the safety factor of the glass floor. As glass itself, unlike other types of steel, when the load exceeds the glass capacity, glass breaks immediately. The concept of layer glass for glass floors arises from German facade engineering. First, we determine the required thickness of glass to withstand self-weight, dead load, and live load. Then, we add another layer of glass to act as a safety factor (2nd layer of glass). Furthermore, we add 3rd layer of glass for public space to add another additional layer to increase more safety factor of glass floor. In other words, 1st layer of glass can withstand the loads, 2nd layer of glass acts as the additional safety factor, and lastly, 3rd layer of glass acts as another additional safety factor for public space. This concept makes sure that if one of the layers is broken, the glass floor shall remain safety for the user.