The protection of structures against blast is a growing concern throughout the words. In this context, particular attention needs to be paid to elements such as doors and windows. These are not only inherently weaker, but they can also become the focus of attacks as they can be used as ingress points in a structure. Due to this, blast doors are commonly used to reinforce access points in sensitive buildings. In this project, we conducted a study on steel blast doors to optimize their performance for use in Singapore. The study included both the panel itself and the ironmongery elements to assess the performance of the whole door system. Several schemes were considered, considering both the elements geometry and the steel grades to be used for each component. Simulations using an open source hydrocode were validated with literature tests and were then used to assess the performance of each door structure. The results showed that the ironmongery components affected the door performance significantly. The simulations allowed the analysis of specific weak points for further strengthening and optimization. It was finally found that, considering both the material grades and geometry, the economy of the doors could be improved significantly.