ok no problem i have found a place that does carry it, that was my worry. I have read in the forum as long as the depth is left alone that you can make it whatever size you would like just confirming that. I did speak to you a month or 2 ago and i have taken everything into consideration and i just cant move my room around in the fashion you would like. I did have an idea about is building floor to ceiling BDA units(no carbon) on the front and rear wall of the room. This is just an enthusiast thing not a professional room. Would that be recommended or am I just overthinking this and wasting my time. My room is 20x10x7 with an L of about the same. Thank you again for your information.
I do agree 100% with you. My thinking was that my room is so small that a great start would be to make the walls and use them for a while and than use screws with urethane chalking instead of wood glue on the top plate to make it removable later to add carbon in a year or so. would that work because i know the units have to be sealed.