- Google vertical ads run in 300×600, 240×400, and 160×600 px sizes across the Display Network.
- Static image files must be under 150 KB in JPEG, PNG, or GIF format.
- For Responsive Display Ads, upload 9:16 vertical assets at 900×1600 px recommended, 600×1067 px minimum.
- Place your headline and CTA in the top third. that's where mobile attention lands first.
- Center-safe focal points prevent cropping issues across different placements.
- Coinis Revise Smart Resize adapts any vertical creative to a new size in one click.
What Are Google Vertical Ads?
Vertical ads are tall display creatives designed to fill sidebar and in-content placements across the Google Display Network. They run alongside editorial content on millions of partner sites and publishing properties.
Common vertical ad formats and sizes
Google supports three main static vertical sizes. The 300×600 (Half Page) is the most prominent and widely available. The 240×400 (Vertical Rectangle) fits narrower slots. The 160×600 (Wide Skyscraper) targets standard sidebar columns. A 120×600 Narrow Skyscraper exists but sees limited placement volume today.
Where vertical ads appear on the Google Display Network
Vertical ads typically live in website sidebars. That position keeps them visible as a reader scrolls down the page. Publishers favor these slots because they hold user attention for the full duration of a content session.
Why vertical formats outperform in certain placements
Sidebar placement means longer dwell time. A user reading a long article has the vertical ad in view throughout. More dwell time equals more impressions per session. That makes creative quality matter more, not less.
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Key Vertical Ad Specifications
Match these specs exactly. One wrong dimension or oversized file and Google blocks the upload.
Standard vertical ad dimensions (300×600, 240×400, 160×600)
| Format | Dimensions |
|---|---|
| Half Page / Fat Skyscraper | 300 × 600 px |
| Vertical Rectangle | 240 × 400 px |
| Wide Skyscraper | 160 × 600 px |
Build your designs to these exact pixel dimensions. Slight mismatches can trigger rejection.
File type and size requirements
Accepted formats for static image ads are JPEG, PNG, and non-animated GIF. Every static upload must be 150 KB or smaller. Exceeding that limit blocks the ad from uploading or serving.
Image quality and resolution standards
Higher-resolution source files compress better within the 150 KB cap. Start your design at 2× or 3× your target pixel count, then export at optimized quality. Crisp images outperform blurry ones. Reviewers and users both notice the difference.
Responsive Display Ads with vertical assets
Responsive Display Ads (RDA) handle placement-fitting automatically. Per Google's Ads Help Center, RDA supports vertical assets at a 9:16 aspect ratio. The recommended resolution is 900×1600 px. The minimum accepted is 600×1067 px. You can upload up to 15 images across supported aspect ratios. Max file size per RDA image is 5 MB. You can also supply up to 5 short headlines (30 characters each), one long headline (90 characters), and up to 5 descriptions. Google assembles combinations and serves the best-performing ones automatically.
RDA simplifies running across placements. But it still needs high-quality vertical source assets to function well.
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Best Practices for Designing Vertical Ads
These principles apply to every vertical size. Skip one and your ad underperforms.
Prioritize the top portion of your ad
Mobile users see the top first. Put your headline, key visual, and CTA in the top third of the ad. Do not bury them. The 300×600 format has generous height. Use the upper section for impact and the lower section for supporting context.
Use high-quality, center-safe focal points
Google crops and resizes ads across different placements. A center-safe focal point survives that cropping. Keep your hero image, product shot, or face centered with clear margins around it. Avoid clipping critical visuals to the edges of the canvas.
Maintain clear visual hierarchy with typography
Use one or two fonts maximum. Size signals reading order. Large headline. Smaller subtext. Body copy smallest. Bold where emphasis is needed. Consistent spacing keeps the layout legible at small display sizes.
Leverage contrast and white space effectively
High contrast between text and background makes copy readable at a glance. White space is not wasted space. It draws the eye to the elements that remain. Cluttered ads lose viewers in under a second.
Write action-oriented CTAs
Use commanding verbs. "Shop Now." "Get 20% Off." "Start Free." Short, direct, impossible to misread. Place the CTA button in a contrasting color so it stands apart from the background and the rest of the ad.
Design for mobile-first viewing
Many Display Network placements now render on mobile. At mobile scale, a 300×600 ad occupies a significant portion of the screen. Design at full resolution, then shrink a preview and check legibility. If you cannot read the headline at half size, it needs work.
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Common Design Mistakes to Avoid
Low-quality or blurry images
Blurry product shots undermine trust. Start with high-resolution source files. Compress for file size, not image quality.
Text overlays that obscure the product
Your product is the hero. Text that covers it hurts both the message and the visual. Use overlays only on non-critical background areas.
Cluttered layouts with too many elements
Pick one message per ad. One offer. One CTA. Every extra element competes for attention and dilutes the main point.
Poor contrast between text and background
Light gray text on a white background is invisible on a bright screen. Test your contrast before exporting. If the copy is hard to read in the design tool, it is harder to read in a browser.
CTA buttons that are too small or unclear
A CTA that disappears into the layout gets ignored. Make it prominent and obvious. Google also disallows fake button elements that imitate OS alerts or interface controls, so keep CTA design clean and honest.
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How to Design Vertical Ads for Multiple Placements
Creating assets for multiple vertical sizes
Design your 300×600 version first. It is the most prominent format and the most demanding creative challenge. Then adapt to 240×400 and 160×600 by adjusting layout proportions. Keep focal points centered across all three versions.
Adapting responsive display ad assets
For RDA, export a clean vertical asset at 9:16 (900×1600 px). Remove embedded text from this version. Google places its own text elements in RDA placements. A text-free image performs better inside the automated system.
Testing focal point placement across formats
Export mockups of each size. Lay them side by side. Confirm your hero element reads clearly in every version. Adjust and re-export wherever cropping creates problems. This step is easy to skip and expensive to miss.
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Bringing Vertical Ads to Life Faster with Coinis
Designing three vertical formats from scratch takes real time. Coinis Revise cuts that work down fast.
Smart Resize adapts any ad creative to a new size in one click. Start with your 300×600 design. Resize to 240×400 and 160×600 without touching a separate design tool.
Need to swap headline copy between sizes. Edit text on image handles that directly on the canvas. Need to remove a background element that overlaps awkwardly in a smaller layout. AI Erase removes it cleanly.
If your source image is low-resolution, AI Upscale sharpens it before export. No blurry uploads. No file rejection.
Coinis does not publish directly to Google Ads today. Direct Google Ads publishing is on the roadmap. But Coinis builds the creatives. Export them, upload to Google Ads Manager, and go live. The creative workflow is where the time savings are greatest.
The Image Ads workflow also generates fresh vertical ad concepts from a product URL. Feed it your product page. Get ad-ready creatives to adapt into each vertical format from there.
Or skip the steps.
Coinis Revise edits any ad image with AI. Move text. Change text. Swap colors. Erase objects. Translate to any language. One click each.
No design skills. No Photoshop. One click.
15 AI tokens a month. No credit card.
Frequently Asked Questions
What is the best size for a Google vertical ad?
The 300×600 (Half Page) is the most widely available and highest-impact Google vertical ad size. It appears in prominent sidebar placements and commands more attention than smaller formats. Design this one first, then adapt to 240×400 and 160×600.
What file formats does Google accept for vertical display ads?
Google accepts JPEG, PNG, and non-animated GIF for static uploaded display ads. Every file must be 150 KB or smaller. Animated HTML5 is also supported but follows separate specs.
How do I set up a vertical asset for a Responsive Display Ad?
Upload a vertical image at a 9:16 aspect ratio. The recommended resolution is 900×1600 px with a minimum of 600×1067 px. Use a text-free version so Google can overlay its own copy. Max file size for RDA images is 5 MB.
Why is the top portion of a vertical ad so important?
On mobile devices, users typically see only the top section of a vertical ad before scrolling past. Placing your headline, key visual, and CTA in the top third maximizes the chance they register your message before moving on.