Creating various 3D Models like Furniture, Footing, Girder, Column drop with panel and Gable Wall in AutoCad

- Set the units and limits

- Change to 3D modeling

- Using modeling draw the given fig





- Using line draw the out line

- By using Bo command make it single object

- Change object type to region and using pick point select the created object and click ok
- Using extrude command extrude the object
