Building a booth/small room

Firstly, great forum! this is my first time posting here, but i have been reading for a while... Here is my situation i live in a group of units and want to keep noise levels down so basically i thought of building a booth or small room would be a good idea for recording Vocals and a 4x12 guitar cabinet, so i just wanted to ask what sort of materials to use? and what would ideal dimensions for such a booth be? it couldnt be higher than 92inches i really dont have dimensional restrictions besides height And it would be free-standing, as im renting and couldnt build it into the current foundations. ofcourse if you think this is a bad idea, then just say so, any input is appreciated, thankyou. and sorry if i havnt provided enough information if you need more info i will provide it

By "free-standing", do you also mean "knock-down", as in "take it with you when you move", or just not attached to the premises? Steve

Yes i guess i would need to be able to knock it down, and no i dont want it attatched to the premises... :)

This makes things more tricky, especially if you want to actually PUT IT BACK TOGETHER - here's how whisperroom does theirs; this is their "enhanced" version, which actually has fair isolation. The standard booths aren't too effective - http://www.whisperroom.com/WEB_specs/td4260E.htm For decent isolation, you need to accomplish mass-air-mass construction that's dismountable. I've still not found a decent/reasonable way to do that... Steve