Create a Graded Region

Grade areas of the topography, changing elevations at selected points, to develop the proposed site design.

To create a graded region, you select a toposolid, which should be exist surface in the current phase. Revit LT marks the original surface as demolished and makes a copy with a matching boundary. Revit LT marks the copy as new in the current phase.

Video: Calculate Cut and Fill Volumes

To grade topography

1. Open a view that displays a toposolid.
2. Click Site tabModify Site panel (Graded Region).
3. In the Edit Graded Region dialog, select one of the following:
   • Create a new toposolid exactly like the existing one.
   • Create a new toposolid based on the perimeter points only.
4. Select the toposolid.

   If you are editing the surface, Revit LT shape editing mode. You can add, delete, or change the elevation of points.

5. When you are finished editing the surface, click Modify.

If you drag the new graded region, notice that the original remains. Select the original, right-click, and click Element Properties. Notice that the Phase Demolished property has the value of the current phase.

Example