Hi People,
Besides 6" Panels for side walls, back wall and ceiling, I'm also building Soffit Bass Traps (Roxul Safe'n'Sound) for the 4 Corners (Floor to Ceiling) as well as Front/Rear and Side Wall/Ceiling Corners for my Home Studio.
The 4 Main Corners are good (17" x 17" x 48")...2 in each...