By default the dock is located at the bottom of your screen, however you can move it to the left or right on your screen as per your convenience. Here we will see two ways to move the Dock to left or right on your screen.
Move dock to left or right
The simple and easiest way to customise your dock is through the System Preferences. Open System Preferences, to open it press
Dragging the dock to left or right on your screen
You can also change the position of Dock by dragging to the desired position. Press and hold