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Advice on dedicated room

Hi everyone ,

I am going to start building my dedicated listening room in the basement soon and need some input. My ceiling is just under 8’ so would 2x4s be adequate for strength or would 2x6 be better? Second , I read an article where Robert Harley was building a new room and used the ISO wall system from acoustic sciences and was wondering if anyone here has used it and liked it. I will at the least use 2 layers of drywall and green glue. Lastly my space available is 15’x16 1/2’. I know that is too square and I can shorten the 15’ direction if needed but if we’re to put a 45 degree angle on two corners ( one corner is needed for access to another area) would that negate the “too square” aspect? Thanks for your input 
ronboco

Showing 1 response by perazzi28

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perazzi28
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Strength is not an issue using 2x4 framing. What is an issue is isolation and vibration control. Using a 2x6 framing allows you to stagger your vertical studs so the sheetrock on each side of the wall is independent from one another.  You are almost as good as 2 2x4 walls.  
Lay the first layer of 1/2" sheetrock vertically or horizontally.  Then use an adhesive to add 1/8" of polystyrene to the whole wall & ceiling.  Finish with a second layer of 1/2" sheetrock the opposite direction of the first layer.
The walls & ceiling will have zero vibration and great isolation. 
Fill the empty wall cavities with insulation ..of course. This really works.
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