When I used to hang out on AVS home theater build area, one guy built a 20 foot tunnel to an area where he had a garage. He then dug a massive hole where hte garage was - something like 15 feet deep. He built a theater in the hole, and then poured concrete back on top of the theater as a new garage pad, built the garage, and voila - secret lair under garage via tunnel.This quote is hidden because you are ignoring this member. Show Quote
edit: it was this guy https://www.avsforum.com/forum/19-de...h-theater.html
But it was actually under his driveway, not his garage, lol.