Hi aljensen,

With Punch, you can import a 2D DWG or DXF plan and convert each element into a 3D Punch element. Select the line / shape--> convert to

However, there are some limitations.
If you imported a plan, your walls will be lines, so you can easily convert each line into a wall and set the dimensions, thickness, etc
In the same way you can convert the elements from the topography, freehand roofs, stairs, decks, etc.
Doors and windows are special objects so they must be elaborated individually
3D objects (chairs, tables, etc) must be elaborated individually

Hope this helps

Patricia