Only certain categories within Revit allow shared parameters. This list shows the family categories that allow them.
| Family Categories Allowing | Additional Categories |
|---|---|
| Casework | Areas |
| Ceilings: created as in-place families | Drawing Sheets |
| Columns | Structural Beam Systems |
| Curtain Panels | Structural Columns |
| Curtain Wall Mullions | Structural Connections |
| Doors | Structural Foundations |
| Electrical Equipment | Structural Framing |
| Electrical Fixtures | Structural Rebar |
| Floors: created as in-place families | |
| Furniture | |
| Furniture Systems | |
| Generic Models | |
| Lighting Fixtures | |
| Mechanical Equipment | |
| Parking | |
| Planting | |
| Plumbing Fixtures | |
| Railings | |
| Ramps | |
| Roofs | |
| Rooms | |
| Site | |
| Specialty Equipment | |
| Stairs | |
| Structural Columns | |
| Structural Foundations | |
| Walls | |
| Windows |