Facebook Right Column Carousels
Resolution : at least 1080 x 1080 pixels
Maximum image file size : 30 MB
Aspect ratio : 1:1
Minimum number of cards : 2
Maximum number of cards : 10
Facebook Instant Articles Carousels
Resolution : at least 1080 x 1080 pixels
Maximum image file size : 30 MB
Aspect ratio : 1:1
Maximum number of cards : 10
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Facebook Marketplace Carousels
Resolution : at least 1080 x 1080 pixels
Maximum image file size : 30 MB
Aspect ratio : 1:1
Minimum number of cards : 2
Maximum number of cards : 10
Facebook Stories Carousels
Resolution : at least 1080 x 1080 pixels
Maximum image file size : 30 MB
Recommended aspect ratio : 1:1
Minimum width : 500 pixels
Minimum number of cards : 3
Maximum number of cards : 3
Facebook teacher database Results
Resolution : at least 1080 x 1080 pixels
Maximum image file size : 30 MB
Maximum video size : 4 GB
Aspect ratio : 1:1
Minimum number of cards : 2
Maximum number of cards : 10
Facebook Ad Sizes Collection
Collections are a type of ad that makes it easier for users to browse and buy products directly from their Facebook feed. A collection typically includes a cover image or video followed by multiple product images.
You can choose to have videos play automatically as users scroll through your collection. Tapping on a video will open an Instant Experience , a full-screen experience designed to drive traffic directly to your product pages. You can add buttons, carousels, photos, text, and videos to your Instant Experience ads. Videos and audio will automatically play as you scroll through the app.