Drywall questions

My goal is pretty much the same as everyone else - - isolation from upstairs and outside..... 2 questions: 1.) For my basement studio.....If I have double wall construction (2 5/8drywall, r19, 4" air gap, r19, 2 5/8 drywall) between the control room and live room, do I need 2 5/8 drywall on the 2 walls with the basement concrete behind them, or can I get away with 1 layer of drywall? 2.) Are there any advantages/drawbacks in using 4x12 drywall as opposed to 4x8 drywall?

fresh_oil_2003 wrote:

My goal is pretty much the same as everyone else - - isolation from upstairs and outside..... 2 questions:

Do you have a drawing of your current design? Might be easier to comment on.

1.) For my basement studio.....If I have double wall construction (2 5/8drywall, r19, 4" air gap, r19, 2 5/8 drywall) between the control room and live room, do I need 2 5/8 drywall on the 2 walls with the basement concrete behind them, or can I get away with 1 layer of drywall?

You mean DW on the concrete walls or on the double stud wall?

2.) Are there any advantages/drawbacks in using 4x12 drywall as opposed to 4x8 drywall?

Yeah, less seams.. but bigger size also means heavier to carry :P

Here's my layout. Please ignore the iso booth in the middle. We're not doing it. Sorry for not being clear. I'm referring to 1 layer of DW on the concrete walls. Note: We are building the walls 6" away from the concrete walls with insulation.

Is the room at the basement? So concrete completely covered with earth (on the outside ofcourse)? ifso: There's enough isolation. Only need acoustics panels. More details? (like, how heigh is the room, are you gonna make a dropped ceiling. etc. etc)