Layouts for Social Posts: Sizes, Safe Zones and Reading Order

A social graphic has only a moment to earn attention, and it is viewed on tiny screens in a scrolling feed. A solid layout makes the message readable at a glance and prevents embarrassing crops. Platform specifications change, so always confirm current recommended dimensions in each platform’s official guidance; the principles below stay stable.

Think in aspect ratios

Instead of memorising pixel sizes, remember shapes. Square, portrait and landscape formats each behave differently in feeds. Portrait formats take up more screen space on phones, which can help visibility, while landscape suits desktop browsing and link previews. Build your master design at a generous size, then export variations for each destination.

Respect safe zones

Apps overlay their own interface on top of your design: profile names, buttons, captions and progress bars. Keep essential text and faces away from the outer edges, and leave extra room at the top and bottom of vertical video formats. Preview your design in the real app by posting to a private or test account where possible.

Create a reading order

1. A dominant focal point: a headline, an image or a number.
2. A supporting line that adds context.
3. A small action cue or brand mark.

Viewers read in a Z or F pattern depending on the layout, but a strong focal point overrides that. Make the first thing they see the thing you most want them to notice.

Text on graphics

• Keep words to a minimum. Long copy belongs in the caption.
• Use a large, clear font that remains legible when the image shrinks to thumbnail size.
• Ensure high contrast, and add a solid band or shade behind text on photographs.
• Limit yourself to two font sizes per graphic.

Carousels and series

Multi-slide posts work well for step-by-step explanations. Design the first slide as a clear hook, keep a consistent grid across slides, and number steps so people know how far they have travelled. End with a simple takeaway or invitation rather than a crowded summary. Use repeated elements like a coloured stripe or page counter to create cohesion.

Consistency across a feed

Choose a small set of layout templates, such as quote, announcement, tip and photo, and rotate between them. This creates recognisability while keeping variety. Reuse the same colours, fonts and logo position.

Video and motion

• Many people watch with the sound off, so add captions.
• Put the important content in the first seconds.
• Keep text on screen long enough to read comfortably, at least twice as long as it takes you to read it aloud.

Accessibility on social

Add alternative text where the platform allows, capitalise multi-word hashtags so screen readers can pronounce them, and avoid conveying information only through colour or emoji.

Check before posting

View the design on a phone at arm’s length. If the message is unclear, simplify. Read the caption for typos, confirm links, and check that any image you did not create is cleared for use. Layout discipline, repeated, is what makes a feed look professional.

Keep a master file

Store your layouts in a single master file with named layers or pages for each ratio. When a platform changes its preferred shape, you can resize from the master rather than redrawing, and your posts stay consistent without repeating tedious work.