A layout grid is a visual overlay on a Frame — columns, rows, or a square grid — that guides where content lines up, without becoming part of the actual design. It only shows in the editor, never in a real screenshot or a shipped app.
Select a Frame, scroll to Layout guide in the Design panel, and click the +. A default square grid appears immediately; the dropdown next to it switches between Grid (an evenly spaced square grid, good for icon work), Columns (vertical guides, the standard for web and app layouts), and Rows (horizontal guides).
| Setting | What it controls |
|---|---|
| Count | How many columns span the Frame |
| Gutter | The gap between columns |
| Margin | The space between the outermost columns and the Frame edge |
| Type | "Stretch" fills the Frame width; "Left"/"Right"/"Center" fixes a column width and anchors it |
Without a grid, "does this align with that" gets answered by eye, and small inconsistencies pile up across a whole screen. With a grid, every element snaps to the same columns, and a design instantly reads as more organized — the same reason print magazines and newspapers have used column grids for a century before screens existed at all.
A 12-column grid is the de facto standard for web layouts (it divides evenly into halves, thirds, and quarters). Mobile app screens more often use a simpler 4-column grid, since there's less horizontal room to divide. Neither is a rule — they're starting points worth knowing before deviating from them on purpose.
Keyboard shortcut
Toggle a Frame's grid visibility on and off with Ctrl+G (or Cmd+G on Mac) — most designers leave it off most of the time and switch it on only to double-check alignment.