Trend runs are the aisles at the end of a block that face out onto the racetrack. Focals are those larger, fancier endcaps. The ones with tiers. At least that's how I think it works.
Trend runs are different if you're a home innovation store. Trend a and trend b face the dining flat, but they're not the same as trend runs in chain stores. Also there's no focals but several VIAs.
Trend runs are the aisles at the end of a block that face out onto the racetrack. Focals are those larger, fancier endcaps. The ones with tiers. At least that's how I think it works.