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CSI MasterFormat™ Sub-Division List |
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| CSI Code | Short Description | Extended Description |
| 05200 | Metal Joist |
| 052000 | Metal Joists |
| 05210 | Steel Joist | Deep Longspan Steel Joists Longspan Steel Joists Open Web Steel Joists Steel Joists Girders |
| 052100 | Steel Joist Framing |
| 05250 | Aluminum Joist |
| 052500 | Aluminum Joist Framing |
| 05260 | Composite Joist Assemblies |
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