April 19, 2026 · 5 min read · by MockStage Team
How to make seamless Instagram carousel mockups that swipe as one story
The panoramic-split technique that makes device mockups flow across all 10 Instagram slides with matching backgrounds.
Instagram carousels get 1.4× the reach of single-image posts. Seamless carousels — where the background flows across every slide — outperform basic ones by another 20–30%.
The panoramic-split workflow
- Design one wide canvas at 10800×1350 (10 slides × 1080 wide, portrait height).
- Place your device mockups and text across the full width. Let backgrounds bleed across slide boundaries.
- Split into 10 individual 1080×1350 images.
- Upload in order — Instagram stitches them into a swipe story.
Why device mockups work here
A phone moving across four slides — screen changing each time — reads like a sequence, not a slideshow. That's the whole trick.