Jumping right into the next square offering from Google Adsense, we have the 200×200 – Small Square. If you’re sidebar or content area is to small to accommodate the 250×250 – Square or the 300×250 – Medium Rectangle, your next option is the 200 x 200 – Small Square. The 200 x 200 – Square is multifaceted and can be placed in many areas of your page. Additionally, with some testing as to placement and design, this ad unit can produce a respectable amount of clicks. However, just like the 250×250 Ad Unit, the 200 x 200 has been relegated to the disapproved list by Microsoft Advertising, as well as the IAB (Interactive Advertising Bureau), in favor of the 300×250 rectangle.
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Exploring Standard Ad Unit Sizes: Google AdSense 200×200 – Small Square
Exploring Standard Ad Unit Sizes: Google AdSense 250×250 – Square
The Google AdSense 250×250 – Square is one of my favorite ad units and it’s one you’ll see commonly around the Web now, both in side bars and in content with wrap around text. The 250 x 250 – Square is versatile and can be placed in many locations, added to the fact that used correctly it can convert very well. However, the 250×250 Ad Unit has fallen out of favor byMicrosoft Advertising, as well as the IAB (Interactive Advertising Bureau), in favor of the 300×250 rectangle.
The 250×250 Square ad unit is still very useful, though, and can be used both with text-only and image/rich media versions, as seen below:
Exploring Standard Ad Unit Sizes: Google AdSense 234×60 Half Banner
As we delve further in this series of posts on Google AdSense ad sizes, we’ll explore the less used and alternate versions of Google AdSense banners. The AdSense 234 x 60 – Half Banner is found in the “Other – Horizontal” category, after the four main recommended sizes. While this ad unit is in the Delisted Standard Ad Unit sizes on the IAB Ad Unit Guidelines, it can be found as a recommended size in the Microsoft Advertising Standard Ad specs. I think the reason for the difference is that the IAB creates standards for agencies and other large advertisers, while AdSense and Microsoft Advertising also provide marketing channels for smaller businesses and publishers.
The 234×60 – Half Banner is very useful in side columns, especially near a navigation menu or under a larger square or rectangle ad unit. I have also seen it used in the footer of a website or blog.
Exploring Standard Ad Unit Sizes: Google AdSense 336 x 280 – Large Rectangle
Google’s second recommended ad unit size for AdSense is the 336 x 280 – Large Rectangle. This ad unit size is not listed in the most popular sizes on the Yahoo! Ad Network, but is on the listed in the Microsoft Advertising PubCenter for ad publishers for small businesses, but not in the Standard Ad Creative Acceptance Policy for Marketers & Agencies. On the IAB (Interactive Advertising Bureau) Ad Unit Guidelines, this size is listed in the Delisted Standard Ad Units as of February 28, 2011.
While this size is available in AdSense for both text and image/rich media ads, it seems that this size is used mainly for small publishers and due to it’s size, is commonly used to take up a large area of the content. Google offer examples of the 336×380 Large Rectangle and they are all embedded in or below the content.
Exploring Standard Ad Unit Sizes: Google AdSense 300 x 250 – Medium Rectangle
This is the first of a series of posts on Google AdSense ad sizes. The main reason I’m doing this is for my own reference. There won’t necessarily be any great insight or advice on how to use these ads. It is mainly a test environment so I can see all of the current AdSense options in action. It will also compare Google AdSense ad sizes to standard agency ad unit sizes.
Four Recommended Ad Sizes
AdSense has four main recommended AdSense ad unit sizes, which are the following:
- 300 x 250 – Medium Rectangle
- 336 x 280 – Large Rectangle
- 728 x 90 – Leaderboard
- 160 x 600 – Wide Skyscraper







