User Experience Design tips#4

Fluid and Fixed UI Grid

The right grid type will help you shape how users experience your product across viewports and devices.

Here’s a quick breakdown of each grid type, with practical examples to help you decide which to use and when:

🟡 Fluid Grid

A grid that expands and contracts to fill the width of the screen or container. It adapts dynamically to different screen sizes.

When to use:

Use fluid grids when your UI needs to maximize horizontal space or adapt to a variety of screen widths.

Fluid grid is good for:

✔ Dashboards

✔ Data tables or kanban boards (e.g., Jira)

✔ Interactive applications that benefit from more screen real estate

✔ Design tools or content creation platforms (e.g., Notion)

Fluid grid benefits:

✅ Great for content & feature heavy pages

✅ Supports multitasking (especially on large monitors)

✅ Feels native in responsive web apps

Fluid grid downsides:

🚫 Lack of control on large screens: Content can stretch too far on wide monitors, leading to poor readability and eye strain.

🚫 Dev & design complexity: Requires more responsive logic and flexible components, increasing development effort.

🟠 Fixed grid

A grid with a max width (usually in pixels or rem), which stays the same regardless of the screen size. Content is centered with consistent margins on the sides.

When to use:

Use fixed grids when readability and consistent presentation are more important than screen coverage.

Fixed grid is good for:

✔ Blogs and articles

✔ Marketing and promo pages

✔ Documentation pages (e.g., Atlassian’s design system)

✔ Onboarding or settings screens

Fixed grid benefits:

✅ Prevents content from stretching too wide on large screens

✅ Improves legibility and user focus

✅ Easier to maintain visual balance across breakpoints

Fixed grid downsides:

🚫 Wasted screen real estate: On large viewports, you end up with giant empty margins, especially on widescreens.

🚫 Poor responsiveness: Without proper breakpoints, fixed grids can look broken on small screens, or force awkward scroll patterns.

📺 How to design a responsive grid system in Figma: https://lnkd.in/dTPEpvRK

🖼️ Fluid and Fixed by Atlassian