Structural calculations are essential in ensuring the safety and stability of buildings and other constructions. These calculations involve determining the loads and forces that a structure must withstand, including weight, wind, seismic activity, and other environmental factors. By using mathematical and engineering principles, structural engineers assess the strength of materials and design elements to prevent structural failures. Accurate structural calculations are crucial for complying with building codes and standards, ensuring the longevity and safety of structures in both residential and commercial projects.