Standard banners sizes

Below are some of the standard banner sizes used on web pages. It is a sort of convention to develop banners based on these sizes; however, we are not bound by these dimensions, as it were. Two other sizes for banners are also in use: 350×300 and 720×300. These are generally not used on web pages but as pop-up or pop-under ads displayed on separate browser windows.

The standard sizes for banners have been formulated by the Internet Advertising Bureau.

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)

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