3d Home Plan Design Software Free Download Questions Answered!

1. Could you suggest a free software to design home (3D)and to download?

   I am planning to construct a house and i want to design the same as per my aspirations.

2. What would I need to use for this????

   I am looking for a computer software program that will allow me to make a 3d plan of a project I am hoping to build. It would help me with finding out the exact measurements I am looking for in the project. And will allow me to go as far as painting and designing the project in the software to see the finished look. I know there are different software to do this when you are builing your own home, but what about simple carpentry projects like I am looking for??? If there is a free trial download even that would be nice to try out, but I am open to looking for programs you need to actually purchase as well. Thank you!