Meta
Facebook Feed Ad Specs 2026
Design at 4:5 (1080 x 1350). Below is the full spec, the practical rules for getting it right, and a free validator to check your own files.
Specs last verified July 2026
| Platform | Meta |
|---|---|
| Recommended aspect ratio | 4:5 |
| Accepted ratios | 4:5, 1:1, 1.91:1 |
| Recommended resolution | 1080 x 1350 |
| Minimum resolution | 600 x 750 |
| File types | JPG, PNG, MP4, MOV |
| Max file size | 30 MB image · 4 GB video |
| Video length | 1 sec - 241 min |
| Formats | Image, Video, Carousel |
| Primary text | 125 recommended (truncates on mobile) |
| Headline | 27 recommended (up to 40 shown) |
4:5 is the tallest ratio Feed allows, so it fills the most mobile screen. Anything taller is cropped to 4:5. Carousel cards must be 1:1.
How to get Facebook Feed right
Design it right
Facebook Feed is where most Meta budget still lands, so the ratio you export at directly decides how much screen your ad takes on a phone. Design at 4:5 (1080 x 1350): it is the tallest shape Feed allows, so it occupies the most vertical space and pushes the following post further down. A 1:1 square is fully supported and displays uncropped, but it is shorter, and 1.91:1 landscape shrinks the ad to a thin strip. The safe habit is to master at 4:5 and only fall back to 1:1 when the same file also has to serve a square-only placement.
The common mistake
The most common Feed mistake is uploading a 9:16 Stories cut and letting Meta crop it to 4:5 automatically - the top and bottom of your framing vanish and you find out from a bad-looking ad in reporting. Keep the primary text under about 125 characters so it does not truncate behind a 'See more', and treat the headline as 27 characters of real estate even though up to 40 can show. Carousel cards are the one exception to the 4:5 rule: they must be 1:1 or they crop unpredictably from card to card.
Check your creative against Facebook Feed
Drop your files into the free creative validator - it reads each file's dimensions in your browser, tells you which placements it covers, and flags the aspect ratio your set is missing. For a single file, the aspect ratio checker gives a per-placement verdict.
Facebook Feed FAQ
What is the best aspect ratio for Facebook Feed ads?
What size should a Facebook Feed image be?
How long can a Facebook Feed video be?
Why is my Facebook Feed ad getting cropped?
How many characters of primary text show in Facebook Feed?
Other placement specs
One concept, every ratio, one ad
Once each concept has its 4:5 and 9:16 cuts, uplads reads the placement in every filename and merges them into a single multi-placement ad - the right cut in each surface - across a whole bulk launch.