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CSI MasterFormat Sub-Division List |
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| CSI Code | Short Description | Extended Description |
| 05500 | Metal Fabrication |
| 055000 | Metal Fabrications |
| 05510 | Metal Stairs and Ladder |
| 055100 | Metal Stairs |
| 05511 | Metal Stairs |
| 05519 | Steel Handrails & Railings |
| 05520 | Handrails and Railing | Pipe and Tube Railings Tempered Glass Railing Assemblies |
| 055200 | Metal Railings |
| 05521 | Pipe & Tube Railings |
| 055213 | Pipe & Tube Railings |
| 05530 | Grating |
| 055300 | Metal Grating |
| 05540 | Floor Plate |
| 055400 | Metal Floor Plates |
| 05550 | Stair Treads and Nosing |
| 055500 | Metal Stair Treads & Nosings |
| 05560 | Metal Casting |
| 055600 | Metal Castings |
| 05580 | Formed Metal Fabrication | Column Covers Formed Metal Enclosures Heating / Cooling Unit Enclosures |
| 055800 | Formed Metal Fabrications |
| 05586 | Column Covers |
| 055900 | Metal Specialties |
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