In situ concrete slab construction is a popular technique for constructing floors, walls, and ceilings that involves pouring concrete into forms erected on-site. This construction method offers numerous benefits, including customization to project-specific needs, durability, and low maintenance. However, the role of structural engineers is crucial in ensuring the safety and longevity of the slab. They evaluate the slab’s strength and durability, consider environmental factors, and analyze potential risks to create robust designs. Key factors considered during the design process include the types of loads the slab will be subjected to, slab size and thickness, reinforcement type, and concrete mix. Different loads acting on the slab must also be considered during design, such as dead loads and live loads. The compressive strength, density, and porosity of concrete are essential properties evaluated during design to ensure the slab can bear expected loads and resist water and chemical damage.