I'm not sure what you are asking here. Do you want a 5 to 6-foot wide french door, or are you looking to convert a 30 - 32" interior door to open from both sides, or do you want a door that swings both directions? I am not aware of any means that would convert your single swing door into a double swing door. If you have about 5 feet of space, you can open a wall and install a set of french doors. These will typically open into the room and are available as a pre-hung set. Requires cutting the opening in the wall and installation of headers if it is a support wall.
If you could clarify what you envision for the project, perhaps someone can help.