Charles and I have started calling the entry way to the new Creative COW Productions' Mancave Recording Studio, the "transporter" because it kind of resembles the Star Trek transporter from the TV series. With (what will end up being) three doors in a triangle -- of which two are now in along with the entry light, etc. -- you can go left into the recording room or go right into the mixing booth. When completed, the steps up into the studio will have a third door that separates the studio from the business offices just down the hall.
Here is a shot of the entryway and the twin Andersen dual pane heavy duty glass doors with soundproofing rubber gaskets and airtight seals around the doors. The third door in the "triangle" placement will act as further sound dampening and isolation to safeguard the working offices nearby.
