Half Page — 300 × 600

Where it goes

A wide sidebar on a content-heavy site. It is twice the height of a medium rectangle in the same width, so it can occupy the whole visible sidebar on a laptop screen.

What it does to your layout

Fits any sidebar that already takes a 300-wide unit, but it changes the balance of the page — the sidebar stops being a margin and becomes a column. Worth checking on a laptop screen rather than a large monitor before committing to it.

What works inside it

The most room of any standard size, so a heading and a full subheading both set comfortably. Image ads have space for an actual composition rather than a logo.

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

The highest-rate sidebar slot. Selling one of these often beats selling two rectangles, because the advertiser gets a share of the page rather than a corner of it. You set the number, and can change it whenever you like. The calculator will turn a daily price into a monthly figure.