SolidFEA is a groundbreaking solid finite element analysis tool that aims to make sophisticated structural engineering design both more accessible and cost-effective. Utilizing the Calculix engine, it provides in-depth sub-model analysis while requiring less financial investment and computing power compared to competitors such as Abaqus. This software is particularly well-suited for tackling intricate engineering challenges, such as those found in steel connections and bridge engineering, and it empowers users by making specialized software easier to access. With its ability to import IFC file formats, SolidFEA integrates smoothly into existing engineering workflows, enhancing the functionality of our GenFEA software for thorough structural analysis. By lowering entry barriers traditionally tied to solid finite element analysis (FEA), SolidFEA represents a significant advancement in structural engineering design and encourages innovation by allowing more engineers to participate in complex projects. Ultimately, its user-friendly design and compatibility features facilitate a new era of efficiency in engineering practices.