If it is not active click modify create floor boundary tab draw panel pick walls.
Create a floor in revit.
Select one or more levels for which you want to create a plan view.
Edit the floor boundary and use the align and trim tools to create a closed loop sketch.
To sketch the profile of the floor click modify create floor boundary tab draw panel and select a sketching tool.
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You can use shape editing tools to manipulate the surfaces of your floor elements.
Click view tab create panel plan views drop down and then click floor plan reflected ceiling plan structural plan in the new plan dialog.
For type select a view type from the list or click edit type to modify an existing view type or create a new view type.
On the ribbon click level.
Open the section or elevation view to add levels to.
Create you floors in the normal manner first.
Architecture tabdatum panel level structure tabdatum panel level place the cursor in the drawing area and click.
The floor boundary must be a closed loop profile.
Once created select the floor element and then use the shape editing tools accordingly.
This video was recorded using revit 2020.
As you place the cursor to create a level if the.
Select walls in the drawing area to use as floor boundaries.