IAB Standard Ad Formats

The Interactive Advertising Bureau (IAB) publishes a portfolio of standards for ads so millions of advertisers around the world can create ads which will work on any site.  IAB Units that Advally Typically Uses: Billboard 970×250 Smartphone Banner 300×50/320×50/320×100 Leaderboard 728×90 Super Leaderboard 970×90 Half Page 300×600 Skyscraper 160×600 Medium Rectangle 300×250 Examples: Billboard – […]

Last Updated September 1st, 2025

The Interactive Advertising Bureau (IAB) publishes a portfolio of standards for ads so millions of advertisers around the world can create ads which will work on any site. 

IAB Units that Advally Typically Uses:

Billboard970×250
Smartphone Banner300×50/320×50/320×100
Leaderboard728×90
Super Leaderboard970×90
Half Page300×600
Skyscraper160×600
Medium Rectangle300×250

Examples:

Billboard – 970×250

The Billboard is a large unit which is used on Desktop experiences.

Smartphone Banner – 300×50/320×50/320×100

Smartphone Banners are slick and optimized specifically for small mobile screens. They garner high CPMS for very low real estate.

Audio focused website with a Smartphone Ad Format

Leaderboard – 728×90

Leaderboards fit on Tablet screens and Desktop so they can fill a slot assigned to a larger unit. There is lots of fill for this unit, so it can be advisable to use even when the slot is larger. Very good for Inline listing pages on Desktop.

Super Leaderboard – 970×90

Leaderboards fit on Tablet screens and Desktop so they can fill a slot assigned to a larger unit. There is lots of fill for this unit, so it can be advisable to use even when the slot is larger. Very good for Inline listing pages on Desktop.

Half Page – 300×600

Half Page is a fantastic unit for blank columns or achieving extremely high viewability on mobile. It is big and beautiful.

Skyscraper – 160×600

Skyscraper is a tall, skinny unit which is exclusively made for Desktop. It fits in slim places where other larger units would not.

Medium Rectangle – 300×250

This is the most widely used ad format. It can be used almost anywhere, and garners very reasonable CPMs in the markets due to its ability to fit a quality creative. Mobile, Desktop all enjoy a 300×250 location.

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