Door knob Support
thingiverse
Fix a Sagging Door Knob or Handle Fits a 1 3/4" thick door with a 2 1/8" hole. Pictured is a Dexter by Schlage J10SEV716 Seville Hall and Closet Lever, http://www.amazon.com/Dexter-Schlage-J10SEV716-Seville-Closet/dp/B003XEDO5I/ref=sr_1_6?ie=UTF8&qid=1438050633&sr=8-6&keywords=dexter+door+handles Should fit most Schlage hardware; I'm not surprised if it fits other brands as well. Let me know if you have any luck with that.
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