The Facebook Feed Ad size (1080×1080px)
For Facebook feed ads, a 1080x1080 pixel square at 1:1 is a strong default. Square creative takes up more vertical space in the feed than a landscape image, giving your ad more room to stop the scroll, and the same file works cleanly across Facebook and Instagram feed placements within Meta Ads Manager.
Ad performance depends on the image doing its job fast. Keep the product or hero visual dominant and any text minimal, since Meta historically favors low-text creative and heavy on-image copy reduces both clarity and reach. Put the value proposition in the ad copy above the image rather than burying it inside the graphic.
Remember your ad also carries a headline, description, and call-to-action button below the image, so the creative should complement that text, not duplicate it. Keep the focal subject centered and away from the edges, which can be trimmed slightly across placements, and use one clear, high-contrast idea so the ad communicates instantly as it scrolls past a busy feed.