Facebook ad mockups, with the ad sizes Meta actually recommends.

Facebook ad sizes by placement

The table below lists image ad specs from Meta's Ads Guide. Video, collection and other formats have separate specs. Aspect ratio tolerance is how far a file can drift from the stated ratio before Meta crops or rejects it, so build at the exact ratio rather than relying on it.

Meta also lists recommended text lengths: for Facebook Feed image ads, 50 to 150 characters of primary text and a 27-character headline; for Facebook Stories, 125 characters of primary text and a 40-character headline; for feed carousels, 80 characters of primary text, a 20-character headline and an 18-character description per card. Longer text is not rejected, but it may be truncated.

Safe zones for Stories and Reels ads

Meta's Ads Guide for Facebook Stories, Instagram Stories and Instagram Reels recommends leaving roughly 14% of the top, 35% of the bottom and 6% on each side free of text, logos and key creative elements, so the profile icon and call-to-action button do not cover them. At the recommended 1440 × 2560 size, that works out to about 358 px at the top, 896 px at the bottom and 86 px on each side.

What is left for the message is roughly 1267 × 1306 pixels, nearly square and above center. That is why a feed ad centered on a 9:16 canvas rarely works: its headline usually ends up in the bottom band. Build the vertical version separately, with the headline near the top of the safe area and the product just below it.

Organic Facebook post and Page sizes

Meta's Help Center does not publish a separate size table for organic feed posts in the articles we checked, so the ad specs are the practical guide: a 4:5 portrait or 1:1 square image at 1080 pixels wide or more fits the same feed and avoids surprise crops. For Facebook Pages, the Help Center does give exact figures.

Because the cover is shown at different ratios on desktop and mobile, keep the product and any words in the middle band and treat the edges as background. MockupX canvases start at 320 pixels per side, so build a cover at double size, 1702 × 630, and export it as JPEG to keep the file small.

One ad, three shapes

Most product ads need a 4:5 feed version, a 1:1 version for carousels and Marketplace, and a 9:16 version for Stories and Reels. Treat them as three layouts that share a headline, screenshot and background, not as one image cropped three ways. A screenshot that is comfortable in 4:5 is often too small in 1:1 and badly placed in 9:16.

In MockupX, the Portrait preset is 1080 × 1350, Square is 1080 × 1080 and Story is 1080 × 1920; all meet Meta's minimums. To match Meta's recommended sizes exactly, enter 1440 × 1800 or 1440 × 2560 as a custom size, which is available on every plan.

• 4:5 feed: headline at the top, product filling the lower two-thirds
• 1:1 square: shorter headline, product cropped tighter to the key control or result
• 9:16 vertical: headline under the top 14%, product in the middle, empty bottom 35%

Make the screenshot prove one thing

An ad is seen for a moment at phone width. A full dashboard in a browser frame reads as a grey rectangle; one chart, one result or one before-and-after reads as a claim. Crop the screenshot to the part of the product that matches the headline, and put the explanation in the primary text instead of the image.

Worked example: a bookkeeping app advertising automatic receipt matching. The 4:5 version shows an iPhone frame with one matched receipt and its transaction, under the headline “Receipts match themselves.” The square version crops to the matched pair alone. The 9:16 version keeps the iPhone frame, moves the headline up, and leaves the bottom third as plain background for the call-to-action.

Carousel ads: plan the cards together

Facebook feed carousel ads take 2 to 10 square cards, each with its own headline and link. Build every card at the same size and treat the first two as the ad, because many people never swipe further. Each card should show a different product moment, not the same screenshot with a new background.

• Card 1: the outcome, with the product visible
• Card 2: the main workflow step
• Cards 3 and later: features, integrations or use cases, one per card

Review the creative honestly

A mockup is for checking the creative, not for simulating a successful post. Do not add invented likes, comments, follower counts or testimonials to a preview, even an internal one, because those images tend to escape into decks and case studies. Review the image alone at phone size, then use Ads Manager's placement previews to check how Meta crops and overlays it.

Also check what the screenshot shows. Customer names, emails, invoice amounts or another company's logo in demo data can cause problems in an ad. Use realistic sample data you control.

Common Facebook ad image mistakes

Most rejected or weak product ads have one of these problems, and all of them are visible in a mockup before launch.

• A 1.91:1 landscape image in the feed, which takes far less screen height than 4:5
• Headline or logo in the bottom 35% of a Story or Reels ad, hidden behind the call-to-action
• Interface text too small to read at phone width
• Different claims in the image and the primary text
• A low-resolution screenshot scaled up until text looks soft