Getting your roblox user ad dimensions right is the first step toward making sure your hard-earned Robux don't go to waste on a blurry or cropped image. There's honestly nothing more frustrating than spending an hour in Photoshop or Canva, perfecting every detail of your game's promotion, only to realize the file won't even upload because the aspect ratio is slightly off.
Roblox has a very specific way of doing things, and while the platform has been evolving its advertising systems lately, the classic "user ads" still rely on three very specific shapes. If you want your ad to look professional and actually get people to click, you have to play by the pixel rules.
The Three Standard Sizes You Need to Know
When we talk about roblox user ad dimensions, we are really talking about three specific layouts: the Banner, the Skyscraper, and the Large Rectangle (which most people just call the Square). Each one serves a different purpose and shows up in different spots on the website.
The Banner ad is 728 x 90 pixels. This is that long, skinny strip you usually see at the very top of the page. It's probably the most "classic" looking ad because it stretches across the screen and is usually the first thing a user sees when they load a page.
The Skyscraper ad is 160 x 600 pixels. As the name suggests, it's tall and thin. You'll find these on the sides of the page, particularly on the left and right margins of the home screen or game pages. These are great because they stay in the user's peripheral vision as they scroll.
The Large Rectangle ad is 300 x 250 pixels (though sometimes people mistakenly aim for 250 x 250). These usually pop up in the middle of pages or at the bottom, and they offer a bit more "chunkiness" for your design, allowing for bigger characters or more text.
Why the Banner Ad is Prime Real Estate
The 728x90 banner is a bit of a double-edged sword. Because it's at the top of the page, it gets a lot of "impressions"—meaning a lot of eyes see it. However, people also have a bit of "banner blindness." We've all been on the internet long enough to subconsciously ignore that top bar.
To make the most of these roblox user ad dimensions, you have to be really smart with the horizontal space. You can't fit a giant, detailed character model in a 90-pixel tall space without it looking like a tiny ant. Instead, banners work best when you have a catchy slogan on one side and a recognizable icon or character face on the other.
Pro tip: Keep your most important information—like the name of your game or a "PLAY NOW" call to action—somewhere in the middle or slightly to the right. Since our eyes usually scan from left to right, you want to hook them with a cool visual on the left and then tell them what to do on the right.
Mastering the Skyscraper Layout
The 160x600 skyscraper is personally my favorite to design for. These roblox user ad dimensions are perfect for showing off full-body avatars. If your game has a really cool custom armor set, a unique character class, or just a funny-looking mascot, this is where you put them.
Since it's so tall, you have a lot of vertical room to play with. You can stack elements. Maybe put the logo at the very top, a high-quality render of a character in the middle, and a big, bright "JOIN GROUP" button at the bottom.
One thing to watch out for with skyscrapers is the "cutoff" on smaller screens. Not everyone is browsing Roblox on a 27-inch monitor. If someone is on a smaller laptop, they might only see the top half of your ad. Because of that, always make sure the most exciting part of your ad is in the top 300 pixels.
The Large Rectangle and Its Versatility
The 300x250 rectangle is the "all-rounder." It feels the most like a traditional social media post. Because these roblox user ad dimensions are more balanced, you don't have to worry as much about things looking squashed or stretched.
This format is fantastic for "storytelling" ads. If you want to show a small scene—like two players fighting or a house someone built in your simulator—this box gives you enough height and width to actually show some background detail.
The downside? These ads don't always appear in the most visible spots. Sometimes they are tucked away at the bottom of a group page or a catalog search. But because they are larger in terms of total area compared to the banner, they often have a higher click-through rate (CTR) if the art is actually good.
Technical Requirements Beyond Just Pixels
Just knowing the roblox user ad dimensions isn't quite enough. You also have to follow the technical specs, or the uploader will just spit out an error message at you.
First, file types. Stick to .png or .jpg. I usually recommend PNG because it handles colors and sharp edges a lot better than JPEG, which can sometimes look "crunchy" or pixelated around text. However, keep an eye on the file size. Roblox usually wants these files to be under 2MB. If you're using a ton of high-resolution textures and effects, a PNG might actually get too big.
Second, avoid transparency. A lot of people try to make "floating" ads by leaving the background transparent in Photoshop. Roblox doesn't really like this for user ads. It will often fill in that transparency with a default color (usually white or black), which might totally ruin your aesthetic. It's always safer to design a solid background that fits the vibe of your game.
Design Tips for Maximum Clicks
Once you've got the roblox user ad dimensions down, you need to think about the "Roblox Aesthetic." The platform uses a lot of greys, whites, and dark blues in its UI. If your ad is grey, it's going to disappear into the background.
Use bright, high-contrast colors. Neon greens, hot pinks, and bright yellows tend to perform really well because they jump off the screen. But don't just make it an eyesore—it still needs to look like something a person would actually want to play.
Text is another big one. Keep it short. "SUPER HERO SIMULATOR - PLAY NOW" is much better than "Come join our new game where you can be a superhero and fly around the city and fight bad guys." Nobody is going to read a paragraph while they're trying to find a game to play. Make your text big, bold, and easy to read even if the person is scrolling fast.
The Approval Process and Moderation
After you've sized everything to the correct roblox user ad dimensions and uploaded it, your ad goes into a moderation queue. This is where a lot of people get tripped up.
Roblox is very strict about what can be in an ad. You can't have any outside links (no Discord invites, no YouTube handles), and you definitely can't have any "clickbait" that's misleading. If your ad says "FREE ROBUX," it's going to get rejected immediately, and you might even get a warning on your account.
Usually, it takes anywhere from a few minutes to a couple of hours for an ad to be approved. If it's been "Pending" for a day, something might be wrong. Always keep your original project files (like a .psd or .canva file) so you can quickly go back and fix something if the moderators flag it.
Is Designing for These Dimensions Still Worth It?
With the introduction of the "New Ad Manager" and "Sponsored Experiences," some people wonder if the old-school user ads are even worth the effort. My take? They absolutely are, especially for smaller developers or group owners.
Sponsored Experiences show up in the "Recommended" or "Sponsored" rows on the Discovery page. They use a square thumbnail (usually 150x150 or similar). But the classic roblox user ad dimensions we talked about—the banners and skyscrapers—are what show up for users who spend a lot of time on the actual website, checking their messages, browsing the catalog, or looking at group walls.
By using the classic dimensions, you're targeting the "power users"—the people who are active in the community. Plus, running these ads is often cheaper than trying to compete in the high-stakes bidding wars of the main Discovery page.
Final Thoughts on Ad Design
At the end of the day, the roblox user ad dimensions are just the foundation. You can have the perfect 728x90 banner, but if the art is boring or the game doesn't look fun, nobody is going to click.
Treat your ad like a movie poster. It needs to convey a "feeling." Is your game scary? Use dark colors and a creepy font. Is it a fun "obby"? Use bright colors and a cheerful character.
Double-check your pixel counts one last time: 728x90, 160x600, and 300x250. Get those right, keep your design clean, and you'll be ahead of 90% of the other ads on the site. Good luck with your game—I'll see you on the leaderboard!