Opening and closing the car door. Two doors opening and closing, generating audio with two different tones. Audio captured with zoom h1 in my garage and no noise.
A high-quality recording of an old metal bathroom stall. Could easily be slowed down and or pitch adjusted for use as an old jail cell door, metal door, eerie sound, etc.
An old sliding door closing shut. Actual location acoustics of an empty house, no reverb applied in post. Recorded with a custom stereo high-separation microphone system.
Wooden door. . . Key is quickly inserted into a lock, turned and the lock is "unlocked" - stereo 44. 1 khz 16 bit interior. . . Recorded with sony mini-disc recorder 2005.
Knocking on a wooden door, like with a metal door knocker, heard from inside a medium size living room. Recorded in stereo with a rode nt5 matched microphone pair.
The sound of entering a carousel door at an office building going around a few times and then exiting. There should be enough audio here to modify it as needed.