How to create thickened slab?

[Anonymous]

I want to make a 4" thick slab that thickens to 8" at a garage door with a 2/1 slope. Can this be achieved?

[Barry Kelly]

Every edge can be controlled separately or you can apply it to all edges.
You can even apply separate materials to each edge.

The only problem I can see is you can't alter the angle of one edge if it is in line with another.
i.e. one edge divided into two along its length.
There is no error and the dialogue shows the edge as being angled but it still appears square in 3D.
You would need to split the slab to get around this.
Barry.

[Laszlo Nagy]

I would also consider using a Profile Wall or Beam for the purpose.
The reason being is that they clean up their intersections so if a Slab thickening is of a more complex geometry (like along a polyline), this may have an advantage over the other solutions offered.