How to change width of last column in Finder Near the bottom of each divider between columns in Finder there are two little horizontal bars that when clicked and dragged resizes the column to the left. This is great, but since the last column doesn't have a divider to the right of it, how can it be resized?
The last column isn't actually a column, strictly speaking, it's a preview.

The only way to resize it is to enlarge the overall window, which can be a bit irritating if you are a lot of levels deep…



You can try Alt/dragging one of the columns smaller, which will change all of them. Then, allowing for a bit of a screen bug which means you need to change the window size slightly, you can gain as much room as possible for the final column/preview

Graphics glitch/screen bug …