Does the calculator account for structural spans needed for retail or office floor plates?

The calculator applies a directional allowance based on building type and floor count, but actual column-free spans for open retail or office floor plates need a structural engineer's design, since longer spans typically require deeper beams or post-tensioned slabs that add real cost. If your brief calls for large open floor areas without intermediate columns, flag this early so the structural budget reflects that requirement rather than a generic commercial assumption.