John Sayers' Recording Studio Design Forum Archive

You can use any dimensions. Some are better than others, but none are perfect.

To determine how your room will perform, try these two websites:

http://www.bobgolds.com/Mode/RoomModes.htm
http://www.bobgolds.com/Mode/RoomModes.htm

Basically, the bigger the room the better. As long as you have to duplicates or super close duplicates, you'll be fine.

Greg