Just a few quick questions about wall basics.. i'm building a room in our basement, which has a concrete floor.

1. Am I to nail the 2x4s along the ground into the concrete?

2. How often do i put a 2x4 upright (stud?).. every __ inches?

3. Lastly, the upright 2x4s - How do i nail them to the ground and ceiling mounted 2x4s? Do i nail them on a diagonal?

Any help would be grately appreciated, as well as any tips or tricks you may have.

Chris Burek