I could not figure out what I wanted to cover the outside of my chamber with. It seems really trendy over the past year to polyurethane osb or particle board and call it done. I don't like trendy. I thought of aluminum foil on the outside, paint, putting textures underneath the foil, all kinds of things. I have started to run out of money for this project and tried looking around in the studio for an abundance of free material. Low and behold a huge stack of styrofoam. After some cutting and routing I found a perfect shape that will make the outside of the chamber look like the inside of a padded room. How fitting.