Download Google’s 3D sketchup software and start designing.
With the software you can create and edit and share 3D models. It is the simplest software for 3D designing in the whole world i have found up till now. It’s tools are not that advance like those of the 3D max but this is enough for beginners. If you are a professional you can get more with the professional version of the software. You can add ready – made textures and glass look and details and so – many things to your picture to make it look real. With the version 6 of this software you can add “Sketchy Effects” to your images. You can even post these images in the Google Earth.

With few simple tools you can create 3D houses , buildings, Sheds , decks and so on.

Google’s Sketch up is not that famous if compared to AutoCad , one of the “best” software for 3d developing. But like always Sketchup is very easy to use , after all it is Google’s product