Use 3:4 deliberately
3:4 is no longer just a profile-grid crop. Native support means designers can use the extra height for the actual feed artwork.
Instagram sizes · 2027 planning guide
Instagram post size 2027: design with the latest feed dimensions
If you are preparing social templates for 2027, start with the Instagram formats that are current now. Instagram supports native 3:4 feed photos, alongside 4:5 portrait, square and landscape posts.
2027 planning guideBased on current platform guidance reviewed 27 September 2026. We’ll update this page when platform specifications or UI change.
Instagram feed dimensions to design for now
Use these as current production canvases while planning 2027 work. Platform behaviour can change, so the guide is date-stamped and reviewed regularly.
| Format | Dimensions | Ratio | Design note |
|---|---|---|---|
| Tall portrait post | 1080 × 1440 px | 3:4 | Current tallest native photo ratio; useful when you want the grid and feed creative to stay tall. |
| Portrait post | 1080 × 1350 px | 4:5 | Still widely used for feed creative and paid-social workflows. |
| Square post | 1080 × 1080 px | 1:1 | Reliable square option when a flexible multi-channel master is useful. |
| Landscape post | 1080 × 566 px | 1.91:1 | Wide feed format; useful for landscape-led creative but takes less vertical screen space. |
Build the artwork for the feed, not just the canvas
Keep key content adaptable
Feed, grid and cross-platform placements can frame the same asset differently. Keep logos and critical copy comfortably away from the edges.
Preview the platform UI
A technically correct canvas can still feel wrong once profile details, caption, actions and interface spacing sit around it.
What designers need to know
Why older Instagram templates can now look dated
For years, 4:5 was treated as the tallest Instagram feed image. Instagram added native 3:4 photo support in 2025, including single-photo posts and carousels, so a lot of older mockup files now under-represent the available feed height.
For 2027 planning, the useful distinction is between the artwork dimensions and the interface it appears inside. MockUp Buddy is designed to keep both parts current rather than treating the social UI as a static frame.
Preview it properly
See your 3:4 artwork inside the current Instagram-style feed
Drop the creative into MockUp Buddy, adjust the crop and review the post with profile, caption, engagement and interface context around it.
Preview an Instagram postFrequently asked questions
What is the best Instagram post size for 2027?
Based on current guidance reviewed in September 2026, 1080 × 1440 px at 3:4 is the tallest native feed-photo format. 4:5, square and landscape remain supported and useful.
Has Instagram changed from 4:5 to 3:4?
Instagram added native 3:4 photo support, so 4:5 is no longer the tallest option. 4:5 still works and remains common.
Will these dimensions definitely stay the same throughout 2027?
No platform specification should be treated as permanent. This page is a 2027 planning guide based on the latest available guidance and will be updated when Instagram changes.
Related guides
SOCIAL MEDIA MOCKUPS THAT LOOK LIKE SOCIAL MEDIA TODAY.
Check the spec. Then see the creative in context.
Use MockUp Buddy to preview your artwork inside a current platform-style interface before it goes into the deck or goes live.
Preview an Instagram post →