Rubbermaid FastTrack like closet upright extension
thingiverse
This is a copy of the Rubbermaid FastTrak closet Upright extension piece. The kit doesn't come with enough of it so I have to fashion my own because I didn't want to by another 22" piece of upright just to get the extension. Use at your own risk. The normal upright is metal. I printed in PETG or PLA depending on strength required. You definitely want to screw the bottom uprights in more holes than you normally would as the upright does not provide weight bearing utility (It's not metal!)
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