Slanted Compartmentation - i.e. stairs, ramps

To add compartmentation i.e. stairs and ramps, so the 3D objects are portrayed correctly, follow the steps below. This is a general guide-line to how to create slanted compartmentations which should work in most scenarios.

Go to a view where the slanted compartmentation should be. Create a reference plane and name it. In this example, the reference plane name is “Stairs”.

Go to Architecture → Ref Plane

Draw the line by one of the walls.
Note: Make sure reference planes are visible in the view.
Measure the width of the compartmentation in the floor plan, the stairs in this case.
Draw a section parallel to the slanted compartmentation.
Go to section and start creating a Model In-Place.

Architecture → Component → Model in-place
Select Fire Protection category, name the family.
Choose the Work Plane to Stairs in the drop-down (make sure from step 1 that the reference plane is named.)
Create an extrusion
Use Pick Line and select the wall, select the bottom of the stair, and top of the floor.
Use the offset tool and offset the lines under the stairs with 1mm.

Note: Make sure Copy is enabled.
Use trim corners to finish the sketch.

Note: It is necessary to zoom very close to the ends.
In Properties, type the width of the stair / ramp + 1000mm in one of Extrusion End/Start.
In Visibility / Graphic override, remove Plan /RCP
Under Subcategory, select the correct requirement
Finish the sketch.
If the boundary in the section. The extrusion grows in the correct direction. If not, change the value to negative Stair width.
In this scenario, it is ok. Change Extrusion End to the correct width.
Finish the Model