Add a Space to Dock in Mac

I’m one to constantly organize my files and documents on my Mac. Throw the following line into Terminal and then restart your Dock to apply.

defaults write com.apple.dock persistent-apps -array-add '{"tile-type"="spacer-tile";}'

killall Dock

You should now see a new space in your Dock area. The end result may look similar to:

Space In Dock

Cheers!