i took a normal room,framed half of it off.3 walls of the initial room are open in a much lager potion of the house.i unzipped a piece of sheet rock in a inconspiquis "sp?" space and built a door frame,i pulled the sheet rock off and built a thin half inch square frame all around the dry wall.i used hinges that pop out and then swing,like u would find on expensive cabinets,they hold a lot of resistence so it wont open unless u tug on it.i had a gate latch originally with a piece of fishing line and a couple of eye screws to use as a guid for the fishing lne,but then i realized it was more trouble than it was worth.u could lean up against the door and not even know what was on the other side,aside from the sound of a 8 inch vortex going 24/7 .personally its a serious pain in the ass to get in and out of,im thinking about just installing a regular door.i am a mj patient and i shouldnt worry about it,but then again going to jail is a mother fucker.