Wide Skyscraper — 160 × 600

Where it goes

A dedicated left or right rail on a desktop layout. Its value is dwell time: a reader working down a long article passes it for the whole scroll rather than seeing it once.

What it does to your layout

It needs a rail of its own — dropping it into a text column will either overflow or force the column wide. It also demands vertical room: on a short page, 600 pixels of ad is most of the screen. Hidden below tablet width on most templates.

What works inside it

Tall and narrow is the hardest shape to write for. Short words work; long ones break awkwardly. Image ads with a vertical subject suit it far better than text.

Text ads are fitted automatically: the embed measures the box and grows the type until it no longer fits, then steps back one — so a short heading in a big slot is set large, and the same heading in a small one is set small, without ever overflowing or being stretched.

What to charge for it

Priced on dwell rather than position. Worth more on long-form sites than on short pages. You set the number, and can change it whenever you like. The calculator will turn a daily price into a monthly figure.