Structural 3D model showing a heavy-duty steel platform or tower base. It includes the full steel framing with diagonal bracing and a staircase for access. You can see the foundation details too, specifically the rebar mesh in the footings and the base plates. Overall footprint is roughly 27m x 21m. Includes levels 1 through 4 marked out. The steel sections used are primarily equal leg angles.Metric units used throughout.