| CSI Code | Short Description | Extended Description |
| 05100 | Structural Metal Framing |
| 05120 | Structural Steel | Architecturally Exposed Structural Steel Fabricated Fireproofed Steel Columns Tubular Steel |
| 05140 | Structural Aluminum | Architecturally - Exposed Structural Aluminum |
| 05150 | Wire Rope Assemblies | Aluminum Wire Rope Assemblies Steel Wire Rope Assemblies |
| 05160 | Metal Framing System | Geodesic Structures Space Frames |