Yes, I use this whiteboard in portrait format, but Sonja is completely right, the pin bar cannot be removed. I had to cut open the plastic to remove it. It also takes up the entire length and can't be mounted on a wide side (if you remove it like I did). The strip is distracting in portrait mode, I would not use the board with the strip in portrait mode.

Theoretically, yes - but it has a bar at the bottom on which pens can be placed - that doesn't make sense in portrait format (and I'm not sure if it can be removed).