The IAB Ad Unit Guidelines are intended for marketers, agencies and media companies for use in the creating,
planning, buying and selling of interactive marketing and advertising.
Rectangles and Pop-Ups
| 300 x 250 IMU – (Medium Rectangle) |
| 250 x 250 IMU – (Square
Pop-Up) |
| 240 x 400 IMU – (Vertical Rectangle) |
| 336 x 280 IMU – (Large Rectangle) |
| 180 x 150 IMU –
(Rectangle) |
| *NEW* 300 x 100 IMU – (3:1 Rectangle) |
| *NEW* 720 x 300 IMU – (Pop-Under) |
Banners and Buttons
| 468 x
60 IMU – (Full Banner) |
| 234 x 60 IMU – (Half Banner) |
| 88 x 31 IMU – (Micro Bar) |
| 120 x 90 IMU – (Button
1) |
| 120 x 60 IMU – (Button 2) |
| 120 x 240 IMU – (Vertical Banner) |
| 125 x 125 IMU – (Square
Button) |
| 728 x 90 IMU – (Leaderboard) |
Skyscrapers
| 160 x 600 IMU
– (Wide Skyscraper) |
| 120 x 600 IMU – (Skyscraper) |
| 300 x 600 IMU – (Half Page Ad) |
Those sizes that are bold above are part of the
Universal Ad Package