This report provides a detailed analysis of structural safety requirements in civil engineering, covering various aspects of building design and material properties. It begins by outlining statutory safety requirements, including structural, fire, and electrical safety, as well as resistance to contaminants and moisture. The report then delves into factors of safety, explaining how these relate to dead and live loads, and explores the selection of steel beams based on bending moments and stress calculations. The study further examines the impact of beam deflection on structural stability, the methods of support for structures, and the effects on deflection in fixed structures. The concepts of slenderness ratio and effective length in the design of steel and reinforced concrete columns are also discussed, along with a comparison of the properties of different materials used for beams and columns, such as steel and concrete. The report concludes by emphasizing the importance of selecting appropriate materials and support methods to ensure the structural integrity and safety of buildings.