On a fresh install this shows nothing:

defaults read com.apple.dock tilesize

I'm trying to set it back to it was when I installed El Capitan. I accidentally grabbed the slider and resized it.

1 Answer 1


Turns out it is 64 - found this out by deleting the value, restarting the dock, clicking on the resizing area but not dragging it, letting go, and then checking the value.

  • 2
    Thank you so much for your research! I was able to reset my dock to the default size with defaults write com.apple.dock tilesize 64.
    – grooveplex
    Nov 15, 2018 at 9:50

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