You are now ready to import the AutoCAD file into 3ds Max and use it to create the general structure of the 3D room.
Set up the units:
The AutoCAD file you are importing is measured in feet and inches. It is best to use the same units setting in 3ds Max.
3ds Max.
Feet With Fractional Inches. Leave the other values set to their defaults, and then click OK. Import the DWG file:
3ds Max opens a Select File To Import dialog.
After a pause, an AutoCAD DWG/DXF Import Options dialog appears. If you get a warning about proxy objects, just click Yes.
Adjust the import options:

At first, all the layers are selected.
Now none of the layers is selected.

3ds Max imports the floor plan, which should appear similar to the following illustration.

Save the scene file: