Before you start posting here please read up topics similar to your query and learn the jargon etc.
You can start by reading this site:
http://johnlsayers.com/Recmanual/index.htmyou should also check out this site and take a look at some of the construction methods demonstrated there:
http://johnlsayers.com/Studio/index.htmdrawing programs used are
http://sketchup.google.com/download.htmland
http://www.smartdraw.comYou will NOT be assisted on this site if you:
1. Don't fill in the Location section in your profile - this is an international site and we need to know what country you are in.
2. Put up a post saying "I have a room X feet x Y feet - what should I do?"
3. Put up a plan that has no dimensions and does not point out pertinent facts like there's a pole in the middle of the room and the right hand wall is all glass.
4. Post pictures greater than 700px wide.
5. Don't explain what you want to do within the studio - how loud you play, what kind of recording setup you have etc.
6. Don't explain how much isolation is needed because of neighbours etc.
Please also read the "Don't Post" articles specific to each forum before you post.
Welcome to Recording Studio Design.
cheers
john