The 250×360 ad unit is a specialized regional size, often found on specific ad networks in Europe and Asia. It is sometimes referred to as a “Triple Widesky” or simply a Large Rectangle variant.
It provides a unique aspect ratio that stands out on pages dominated by standard 300×250 squares, offering advertisers a taller canvas for vertical imagery.
Why Use the 250×360?
1. Visual Differentiation
In a sea of standard squares, the 250×360 stands out because of its verticality. It is excellent for displaying product packaging (like book covers or beverage cans) that doesn’t fit well in horizontal formats.
2. Network Specificity
While not a global standard like the 300×250, this unit is often a requirement for specific regional campaigns. Having this size ready ensures you don’t miss out on inventory in niche markets.
Conclusion
The 250×360 is a strategic asset. It fits into standard 300px sidebars with room to spare, while offering more height than the competition.