The 300x600 at a glance
| 300 x 600 | |
|---|---|
| Size | 300 x 600 px (ratio 1:2) |
| Google's name | Half-page ad |
| Where it shows | Right-hand sidebars on desktop pages, sometimes staying in view as you scroll |
| File limit | 150 KB for uploaded image ads in Google Ads |
Use the height like a feed ad
A half page reads top to bottom, a lot like a 4:5 feed ad squeezed narrower. Stack it:
- The hook at the top: the line that earns the next glance.
- The product in the middle, as large as the width allows.
- Proof under it: a star rating and review count, or one short quote.
- Price and button at the bottom.
The 300 px width is the real limit. Headlines need short words over two or three lines, and long product names may need a smaller size than you would like.
What StoreToAds makes instead
The closest file in our set is the 9:16 vertical at 1080 x 1920: a tall version of the ad that Google's responsive display ads accept as a vertical image (900 x 1600 recommended). Along with the 1200 x 628 landscape and the 1080 x 1080 square, it gives Google tall, wide and square images to arrange. Google lists 300 x 600 among its common desktop sizes, and responsive display ads adjust to fill it.
Fixed half-page files and HTML5 banners are not offered yet. If a site sells the slot as an exact 300 x 600 upload, use a designer or a banner tool for that buy.








