HyperSizer 6.2 is structural sizing and analysis software that is used widely in the spacecraft and aviation industries. It includes modeling capabilities for airframe wing box designs, and laminate zone and ply-count optimization enhancements to improve manufacturing efficiency. The software targets weight, while serving as an independent and neutral data exchange hub for CAD, FEA and composite software packages. It iterates with FEA solvers, calculates margins of safety, validates failure predictions with test data, and sequences composite laminates for fabrication — avoiding weight growth as designs mature. Its capabilities also are appropriate for applications in wind turbine blades, ship hull and superstructures, high-speed railcars, and automobile body components.