LinkedIn Marketing

LinkedIn Carousel Ads: How to Build the Card Sequence

A build guide for LinkedIn carousel ads: how to write the hook card, structure the narrative across cards, place the call to action, and get the specs right.

Hand swiping through a row of translucent LinkedIn carousel ad cards arranged in sequence

Most of the LinkedIn carousel ads I scroll past were never designed as carousels. They started life as a slide deck, or a one-page brochure, and got cut into squares. Card one is a title slide with a logo. Cards two through six are bullet points. The last one says "Contact us." Hardly anyone gets past the second card, and then the format takes the blame for something that went wrong back in the design file.

I am Raphael Presberg, Founder and CEO of Moriah, a LinkedIn marketing agency and a LinkedIn Certified Marketing Partner. LinkedIn Ads are one of the three pillars we run together for established B2B companies, and carousels are the format clients ask about most. They look easy. Then they quietly underperform.

This guide is about the creative and nothing else. Not targeting, not bidding, not attribution. Just the build: what goes on the first card, how the story moves across the set, where the call to action belongs, and the specifications you have to design inside. If you are still deciding which format to run in the first place, our overview of the types of LinkedIn ads is the better starting point. Come back once you have settled on a carousel.

What LinkedIn Carousel Ads Actually Are

LinkedIn carousel ads are sponsored units in the feed, built from a row of square cards the viewer swipes through sideways. Every card carries its own image and its own headline, and they all sit under one block of introductory text. When the carousel points at a landing page, each card can carry its own destination link too.

That structure is the whole point. A single image ad gets one shot at one idea. A carousel gets a sequence, so you can set a problem up on one card and pay it off two cards later. The catch is that the viewer has to choose to keep going, twice, three times, five times. Every card is a small ask.

Carousels run across the full funnel on LinkedIn, from brand awareness through website visits, engagement, lead generation and website conversions. The format is rarely what holds a campaign back. The sequence is.

The Specs You Have to Design Inside

Get these wrong and the ad is rejected or cropped, so start the design file with them rather than retrofitting later.

ElementRequirement
Cards per carouselMinimum 2, maximum 10
Image dimensions1080 x 1080 pixels minimum
Aspect ratio1:1 square, the same on every card
File typeJPG, PNG, or non-animated GIF
Maximum file size10 MB per card
Card headline45 characters
Introductory text255 characters (keep it under 150 to avoid truncation on some devices)
Landing page URLRequired, http:// or https://
VideoNot supported in carousel cards

Two of those shape the creative more than everything else on the list put together.

Forty-five characters is short. Six or seven words for a card headline. There is no room for a subordinate clause. Write the headline first, at the real character count, before anyone opens a design tool. If the idea will not survive 45 characters, it is not one card. It is two.

One square, no exceptions. Every card is 1:1, and every card in the set has to match. There is no vertical or horizontal option to fall back on, which rules out reusing a landscape hero image or a portrait product shot. Keep text, logos and any detail that matters away from the edges, and work in the middle of the square. The feed crops harder than the preview lets on.

Card One: The Hook

When a carousel lands in the feed, the first card shows in full and the second sits partly visible beside it. That sliver is the mechanism that makes the format work, and most advertisers waste it.

Card one has one job: earn the swipe. Not explain the offer. Not introduce the company. Not establish the brand. Earn the swipe.

What works on card one:

  • A specific claim the reader wants resolved. "Most LinkedIn Ads budgets are spent before the buyer knows who you are." Now they have a question.
  • A number that does not make sense on its own. A figure without its explanation opens a gap the next card fills.
  • A named tension the audience already feels. State the problem in their language, from their side of the desk, and stop.
  • A promise of a sequence. "Four reasons pipeline stalls after the first meeting." The reader knows what they are getting and how long it takes.

What fails on card one is anything that reads as finished. A title slide is finished. A logo lockup is finished. A statement of what your company does is finished. Finished means nothing is waiting on card two, so the reader has no reason to move.

Quick test before you ship: cover every card except the first, then look at that one alone. If it feels complete, rewrite it.

And use the partial second card deliberately. Design card two so its left edge shows something visibly unresolved, the start of a sentence, the top of a chart, the first item in a list. That sliver is recruiting readers whether you planned for it or not.

The Narrative Arc Across the Cards

This is where carousels are won. A carousel is not a list of features arranged left to right. It is an argument that moves. The cards in the middle have to keep earning the next swipe the way card one did, and they do that by leaving something open.

Three sequences hold up reliably for B2B.

The Problem Sequence

Card one names a problem. Card two makes it more expensive than the reader thought. Card three shows why the obvious fix does not work. Card four introduces the different approach. Card five proves it with a result. Card six asks.

Strongest arc for a cold audience, because it earns the right to talk about your service by showing you understand the situation before you sell into it.

The Enumerated Sequence

Card one promises a defined set: five signs, four mistakes, three decisions. Each card after that delivers one item, and the last card carries the ask.

The count itself is what pulls people through, because the reader knows how long the commitment runs. It also gives you a clean per-card structure, which speeds up the design work. The risk is that enumerated carousels drift into generic, so make each item specific enough that a reader could not have written it themselves.

The Case Sequence

Card one states the outcome. Card two describes the situation before. Card three explains what changed. Card four shows the mechanism. Card five carries the ask.

Leading with the outcome and backfilling from there is unusual enough in the feed to hold attention, and it suits companies with real results to point at.

Whichever arc you use, the same rule applies to every card in the middle: one idea per card, and the idea ends where the card ends, but the argument does not. A card that resolves everything is a place to stop scrolling. A card that closes its own point while opening the next one is a place to swipe.

How Many Cards to Use

LinkedIn allows 2 to 10 and recommends starting with 3 to 5, then testing longer versions from there. Short carousels drive strong engagement. Longer ones, 6 cards and up, suit richer storytelling when there is genuinely more to say.

In practice the number should fall out of the argument, not the other way round. Count the beats your sequence actually needs, then build that many cards. Four beats in a six-card carousel means two cards are padding, and padding is where people leave.

You do not have to guess at this. Campaign Manager reports clicks and impressions by individual card, so download the report and look at where impressions fall away. A steep drop between card two and card three is a card two problem, not a length problem. A gentle decline that flattens out means the sequence is working and you can probably afford another beat.

Where the Call to Action Belongs

The instinct is to put the ask on every card, in case someone leaves early. For a carousel that tells a story that instinct is wrong, and LinkedIn's own guidance says as much: when you tell a story, put the main value or the call to action on the final card, so the audience has a reason to swipe through the whole carousel.

A few rules follow from that.

Hold the ask until the end. If card two already asks for the meeting, everything after it is decoration. The sequence stops being an argument and becomes a repeated request.

Give the final card the strongest headline of the set. You have 45 characters. Spend them on what the reader gets by clicking, not on the mechanics of clicking. "See how we run it for B2B teams" beats "Learn more."

Use per-card destination URLs deliberately. On a carousel pointing at a landing page, each card can go somewhere different, which is useful when the cards genuinely cover different subjects, say an enumerated carousel where each item maps to its own page. When the carousel tells one continuous story, send every card to the same place. A reader who clicks on card three because the argument landed should arrive where card six was going to send them anyway. This choice only exists on landing page carousels: attach a Lead Gen Form and every card opens the same form.

Know how the ask renders. Carousels using a Lead Gen Form show a call-to-action button in each card description, while carousels pointing at a landing page do not. That changes how much of the ask the creative has to carry. With a landing page, the final card does the persuading on its own.

Designing the Card Itself

The sequence is the hard part, but a good arc still dies inside a badly built square.

  • Build one template and reuse it. Same typographic scale, same margins, same position for the card number if you use one. Consistency is what tells the reader these cards belong together and that there is a defined end.
  • Set a real text hierarchy. One dominant line per card, readable in under two seconds at feed size, with anything supporting it clearly subordinate. Two competing lines of equal weight and neither gets read.
  • Design for the phone. Preview at actual mobile size, not at full width on a monitor. If the dominant line is not legible on a phone held at arm's length, it does not exist.
  • Use graphics, people and dynamic text. Flat cards of centered text in a brand color blend into the feed. Motion in the layout, faces, visual variation between cards, all of it helps hold attention across the swipe.
  • Number the cards when the sequence is enumerated. A visible "2 of 5" tells the reader the commitment is finite, which makes finishing feel like a smaller decision.
  • Keep the important content off the edges. Text, logos, figures and product detail all belong in the center of the square.

The Mistakes That Cost the Most

I see the same handful over and over, roughly in this order of damage.

  1. The chopped brochure. Existing marketing material sliced into squares. No arc, so no reason to swipe.
  2. A complete first card. The title-slide opener. It looks professional and it kills the campaign at card one.
  3. The ask on every card. In a carousel built as a story, it turns a sequence into a repeated request and removes any narrative pull.
  4. Headlines written before anyone checked the character count. Copy gets truncated at 45 characters and the point disappears.
  5. Mismatched ratios. One card built from a landscape image, cropped badly or rejected outright.
  6. Text sized for a design review, not a feed. Legible on the reviewer's monitor, invisible on the buyer's phone.

A Build Order That Works

When we build a carousel, the design file is the last thing that opens.

  1. Write the argument in plain sentences. One line per beat, no formatting. If it is not persuasive as six sentences, no amount of design will rescue it.
  2. Cut it to the number of beats it actually needs. That number is your card count.
  3. Write every headline at 45 characters. Literally count them. Rewrite anything that does not fit rather than trimming words off the end.
  4. Write the introductory text under 150 characters. It sits above the whole unit and should frame the sequence, not summarize it.
  5. Decide the destination for every card. One page for a continuous story, separate pages when the cards genuinely diverge.
  6. Then design. One template, applied across the set.
  7. Review card one alone, on a phone. The swipe is the only metric that matters at this stage.

The Creative Is Not the Whole Job

A well-built carousel earns the swipe and the click. What happens after that decides whether it earns anything else.

The failure I watch play out most often has nothing to do with the design. The ad works, the click happens, and the person lands on an executive profile that has not posted in four months, or a company page that reads like a brochure. Nothing there confirms the promise the carousel just made, and the lead goes cold.

Which is why LinkedIn Ads at Moriah are one focus area out of three, never something you can buy on its own. We run executive personal branding, targeted outreach and LinkedIn Ads together, in parallel, pointed at a single business objective, because that is how LinkedIn works as a business engine. Content published from a personal profile performs roughly 5 to 10 times better than the same content from a company page, so when your leaders are visible and posting, the person arriving from a carousel finds someone who has already been making the argument. The ad amplifies something real instead of introducing a stranger.

Any business objective has an answer with the right LinkedIn strategy. A carousel is one instrument inside that, and a good one, as long as the sequence is built as a sequence.

Frequently Asked Questions

What are LinkedIn carousel ads? LinkedIn carousel ads are a sponsored format made up of a row of square cards the viewer swipes through sideways in the feed. Each card carries its own image, headline and destination link, all sitting under one block of introductory text.

How many cards can a LinkedIn carousel ad have? A carousel can hold a minimum of 2 cards and a maximum of 10. LinkedIn recommends starting with 3 to 5 and testing longer versions from there, with 6 or more suiting richer storytelling.

What size should LinkedIn carousel ad images be? Each card should be at least 1080 x 1080 pixels at a 1:1 square aspect ratio, saved as JPG, PNG or non-animated GIF, at up to 10 MB per card. Every card in the same carousel has to use the same ratio.

How long can a carousel card headline be? Card headlines cap at 45 characters, roughly six or seven words. Write the headline at that exact count before design starts, because copy that runs long gets cut and the point is lost.

Where should the call to action go in a carousel ad? On the final card, when the carousel tells a story. LinkedIn's guidance is to place the main value or the call to action last so the audience has a reason to swipe through the whole sequence, and repeating the ask on every card removes the narrative pull.

Can each carousel card link to a different page? Yes, on a carousel that points at a landing page. Each card can have its own destination link, which is useful when the cards genuinely cover different subjects. When the carousel tells one continuous story, point every card at the same page. Carousels using a Lead Gen Form work differently: every card opens the same form.

Do LinkedIn carousel ads support video? No. Carousel cards are static images only, in JPG, PNG or non-animated GIF. If video is central to the message, a video ad is the right format instead.

Can I see how each individual card performed? Yes. Campaign Manager reports clicks and impressions by individual card in its downloadable reports, so you can see exactly where people stopped swiping and fix that card rather than guessing.

Do carousel ads work with Lead Gen Forms? Yes. Carousels using a Lead Gen Form display a call-to-action button in each card description, while carousels pointing at a landing page do not, so the final card has to carry more of the persuasion on its own.

When should I use a carousel instead of a single image ad? Use a carousel when the message needs a sequence: a problem that has to be set up before the solution lands, an enumerated list, or a case study that moves from outcome to mechanism. If the message is one idea, a single image ad will do it better.