| CSI Code | Short Description | Extended Description |
| 04800 | Masonry Assemblies |
| 04810 | Unit Masonry Assemblies | Cavity Walls Composite Unit Masonry Masonry Veneer Multiple - Wythe Unit Masonry Single - Wythe Unit Masonry Surface - Bonded Masonry Thin Brick Veneer |
| 04820 | Reinforced Unit Masonry Assemblies |
| 04830 | Non-Reinforced Unit Masonry Assemblies |
| 04840 | Prefabricated Masonry Panel |
| 04850 | Stone Assemblies | Dry - Placed Stone Assemblies Metal - Supported Stone Assemblies Mortar - Placed Stone Assemblies Stone - Clad Precast Concrete Stone Curtain Wall Assemblies |
| 04880 | Masonry Fireplace |