Thanx everyone, and keep posting if you have ideas. Obviously, many people coud use this info, not just me! Thanx again! ,Lance

Thanx so much for your help man. I almost got it now. A few more questions, because I didnt catch the first time about:
sheetrock--liner--sheetrock--2X4 frame--sheetrock--liner--sheetrock

1. between the sheetrock walls with liner between you have 2X4's. I dont understand how you attatched the outside wall and the inside and the 2X4's. You said somethign about not attatching the 2X4's to the outside wall, only the inside. and then the two walls attatch. How is that done? I dotn get it.

2. Are you saying I should put insulation where the 2X4's are? like Roxul? Am I suppose to completely fill the gap between the stud frame and the two walls? Also, should the studs be placed with the 2" side against the wall or the 4" side against the wall?

Thanx again, Lance

P.S.- I can get creative and come up with something, Im good liek that, but you have a orking unit, and I definitely appreciate the help....

Anybody know what these stinky "sound deadening" 1/2"x4'x8' sheets are that I bought at home depot? They were right across from the plywood, kind of a rigid material that crumbles if handled much. I put it in my garage to de-stink before I tried to use it, - its finally not too stinky after six months - smelled a bit like a wet dog.

Is that rockwool?

Eric

ebinary,

I wonder if what you got was Dura Rock / Dura Board.. it is very close to what you described..

ORIGINAL: casper13

ebinary,

I wonder if what you got was Dura Rock / Dura Board.. it is very close to what you described..

Hmm, there are lots of products named DuraBoard and DuraRock on the web, but none sound like this stuff. This stuff is pretty soft - you could push your finger through it with a little effort.

Oh yeah, and these "stinky" sheets are brown - the exact same color as unfinished masonite pegboard. They even have the small checkboard finish of unfinished masonite.

Eric

Rockwool is a semi-rigid fiberglass product. It's kind of like "the pink stuff" insulation by many times more dense. If you go into the ceiling tile and look at the ones that are made from compressed fiberglass insulation, this is a similar material. But the ceiling tiles are only 1/2" thick. I'm talking about the 3" thick stuff and trust me, HD does not stock it and niether does lowe's. It's a specialty item that comes from places where contractors get their supplies. It also comes in 2" thick 2'x4' sheets but this would only be useful if you are applying it INSIDE the booth, wrapped in fabric, in place of studio foam. Use the 3" stuff inside the walls.

1. between the sheetrock walls with liner between you have 2X4's. I dont understand how you attatched the outside wall and the inside and the 2X4's. You said somethign about not attatching the 2X4's to the outside wall, only the inside. and then the two walls attatch. How is that done? I dotn get it.

The first layer of sheetrock should be attached to the 2x4 studs just the same as if you were building a normal wall. The outer layer of sheetrock sandwiches the sound barrier material in between. Attach the outer sheetrock layer with 1 1/4" long screws to the inner sheetrock layer, but be careful not to have the screws go all the way into the studs. get it? The reason is that the screws would acoustically couple the outer sheetrock to the studs, which would bypass most of the performance of the sound barrier material. Note that I also mentioned to try putting some self-stick weather stripping foam (1 1/2") on the 2x4's before you apply the first layer. I didn't do this personally cause I didn't think of it till later. Let me know how it works.

2. Are you saying I should put insulation where the 2X4's are? like Roxul? Am I suppose to completely fill the gap between the stud frame and the two walls? Also, should the studs be placed with the 2" side against the wall or the 4" side against the wall?

The Roxul product, being 3" thick, and the 2x4 actual size being 3 1/2 thick, will fill the wall up nicely. The more room the Roxul stuff has to work with the better, so I would not compress it by putting the 2x4's flat against the walls. You need the full 3 1/2" depth for the Roxul to be at it's maximum effectiveness. Don't do 4" Roxul inside the wall because compressing the Roxul could actually make it less effective. Try using some kind of tacky glue to attach the Roxul to the inner wall, which leaves a 1/2" air space inside the wall. Personally, I applied 3" Roxul to my floor joists above the vocal booth but did not push it all the way up to the floor. I let it hang down a few inches. This creates a "bass trap" as well as a sound absorber. The same effect should somewhat apply when you put the Roxul stuff inside the wall pushed to one side.

I bought a Carillon computer and I love it.

I looked this up and I have to say this thing looks sweet. If only I had a couple thousand dollars laying about the place...

Anybody know what these stinky "sound deadening" 1/2"x4'x8' sheets are that I bought at home depot? They were right across from the plywood, kind of a rigid material that crumbles if handled much. I put it in my garage to de-stink before I tried to use it, - its finally not too stinky after six months - smelled a bit like a wet dog.

It's called "soundboard"--I have it in between double drywall in my studio....
CAA

ORIGINAL: Cass Anawaty

Anybody know what these stinky "sound deadening" 1/2"x4'x8' sheets are that I bought at home depot? They were right across from the plywood, kind of a rigid material that crumbles if handled much. I put it in my garage to de-stink before I tried to use it, - its finally not too stinky after six months - smelled a bit like a wet dog.

It's called "soundboard"--I have it in between double drywall in my studio....
CAA

Cool - thanks to the name, I found this useful link:

soundboard properties

Eric