On an ultrawide display, two halves leave each window far too wide. Thirds, four columns or one large window with two stacked beside it use the space better. Casement's layout picker offers these when you drag a window, and the four-column and six-window layouts appear on large external monitors.
Why halves do not suit ultrawides
A 34-inch ultrawide is about 3440 pixels wide. Two halves give two 1720-pixel windows, wider than most pages need and awkward to read. Three or four columns match how people actually work on one.
Layouts that fit
- Thirds: three evenly sized columns.
- Four columns: for monitoring or chat windows alongside your main work.
- Main plus two: one large window with two stacked beside it.
- Six-up: three by two, for dashboards.
How
- Drag a window toward the top of the screen to open the layout strip.
- Drop it on a slot. Casement offers other open windows for the empty slots.
- Use ⌃⌥6 to tile six windows at once.
Example arrangements
| Task | Layout |
|---|---|
| Coding with docs and a terminal | Main plus two: editor large, docs and terminal stacked |
| Writing with research | Thirds: notes, draft, sources |
| Trading or monitoring | Six-up: charts and feeds in a grid |
| Video calls plus notes | Four columns: call, notes, chat, calendar |
Tips for very wide screens
- Keep the window you read most in the middle third, where your eyes already are.
- Put chat and email in the outer slots so they stay visible but out of the way.
- Use linked resizing to shift the seams when one window needs more room.
Questions people ask
Do the layouts adapt to my resolution?
Slots are proportional, so they fit whatever the display's size.
Does it work with two monitors?
Yes. Each display has its own layouts.
Try Casement
Casement is a menu-bar app for Mac that puts each Chrome profile in the Dock as its own icon and adds snap layouts, hover-to-focus, a window switcher, Dock window lists, a drop shelf and display controls..