It’s easy to create a 3d floor plan with a Polysolid function in the Autocad 3d interface. We take you through the steps in our Autocad 3d training courses.
First split your screen into two view ports through the View drop-down menu. Make the left view your top view, and your right view an isometric view, for example. This makes it easier to extrude upwards later. Then set your drawing limits to 10 by 5 meters, for a larger model like a floor plan. Then Zoom > All.
Create the walls first with the Polyline tool (type PL), in the top view, as shown above left. Now we select the Polysolid tool from the Solid Editing tab. The software then asks us to specify the height – punch in 2800 (for example). Then it asks you for the width of the walls – punch in 270mm (for a double-brick wall). Then you have several more options – select O (for Object) and click on the polyline representing the walls.
To cut doors out from the walls object, select the Box tool and click anywhere on the screen. Type L (for Length) > 1000. Then W (for width) > 1000, and H (for Height) > 2200. We will use this object to create holes (subtract) from the walls. Copy the door object and use the 3D Move tool and the 3D Rotate tool to place it where you want the doors to be. Adjust the width so that the Box completely intersects the wall.
Repeat this process for the windows – create a box L: 2000, W: 1000, H: 1500. Copy, 3D Move and 3D Rotate into the window positions. Change view ports to a single view. Then use the Subtract tool to create the holes in the walls for doors and windows. Keep orbiting around the model as you build and subtract.
The 3d interface in Autocad is user-friendly and easy to learn, and we take time to teach a broad range of applications in our classes including modeling, materials, lighting and animation. See many examples of our clients’ work on our Facebook page. For more information there are lots of resources on the web, but try the Autodesk site to begin with: www.autodesk.com. Support options and user forums are also available from the home page.
Other related Autocad 3d Blog Posts:

• Autocad 3d introduction
• Autocad 3d modeling
• Autocad 3d blocks
• Autocad 3d commands
• Autocad 3d basics