Skip to content

Using a vertical, portrait monitor with a Mac

A monitor turned on its side is great for code, documents and long feeds. How to rotate it on a Mac and lay out windows on a tall, narrow screen.

Guide · Updated 13 October 2026

Turn a monitor 90 degrees and it shows twice as many lines of code or text. Many people keep one portrait screen next to a landscape one.

Rotating it

  1. Open System Settings, Displays, and select the monitor.
  2. Set Rotation to 90 or 270 degrees, to match how the stand turns.
  3. Check Arrange so the pointer moves between screens where you expect.

What suits a tall screen

  • One window, full width: code, a long document, a PDF.
  • Two windows stacked top and bottom: chat over a feed, mail over calendar.

Stacks, not columns

Side by side columns are too narrow on a portrait screen. In ClutterFreeMac, stack windows in one column with ⌃ ⌥ ], adjust their share of the height with ⌃ ⌥ ⇧ = and −, and keep each column full width. The portrait screen gets its own strip, separate from your landscape one.

Questions

How do I rotate a monitor on a Mac?

System Settings, Displays, select the monitor, and choose a Rotation.