Modify instance properties to change an foundation slab's constraints, rebar cover, structural material, and more.
To change instance properties, select the element and change its properties on the Properties palette.
| Name | Description |
|---|---|
| Constraints | |
| Level | Specifies the level that the slab is constrained to. |
| Height Offset From Level | Specifies the elevation of the top of the slab relative to the constrained level of the slab. |
| Related to Mass | This is a read-only value. |
| Structural | |
| Structural | If checked, Slab has an Analytical Model and is exported to analysis packages. |
| Rebar Cover - Top Face | The rebar cover distance from the foundation slab top face. |
| Rebar Cover - Bottom Face | The rebar cover distance from the foundation slab bottom face. |
| Rebar Cover - Other Faces | The rebar cover distance from the foundation slab to adjacent element faces. |
| Estimated Reinforcement Volume | Specifies the estimated reinforcement volume of the selected element. This is a read-only parameter that only displays when rebar has been placed. |
| Dimensions | |
| Slope | Specifies the slope of the slab from the horizontal plane. |
| Perimeter | Indicates the slab perimeter. This is a read-only parameter. |
| Area | Indicates the area of the slab. This is a read-only parameter. |
| Volume | Indicates the volume of the slab. This is a read-only parameter. |
| Width | Indicates the width of the slab, if rectangular. This is a read-only parameter. |
| Length | Indicates the length of the slab, if rectangular. This is a read-only parameter. |
| Elevation at Top |
Indicates the elevation used for tagging the top of the foundation. This is a read-only parameter that reports Varies for sloped planes. |
| Elevation at Bottom |
Indicates the elevation used for tagging the bottom of the foundation. This is a read-only parameter that reports Varies for sloped planes. |
| Thickness | Indicates the thickness of the slab. This is a read-only parameter. |
| Identity Data | |
| Comments | A field for placing general comments about the slab. |
| Mark | A label created for the slab. Possible use: shop mark. This value must be unique for each element in a project. Revit warns you when the number value is already used but allows you to continue using it. You can see the warning using the Review Warnings tool. See Review Warning Messages. |
| Phasing | |
| Phase Created | Indicates in which phase the slab component was created. See Project Phasing. |
| Phase Demolished | Indicates in which phase the slab component was demolished. See Project Phasing. |