The pouf we received was 18" tall even though it is advertised as 14" tall, the box says it is 14" tall and the paper work inside the box says 14" tall.  In the Wayfair world, 18" = 14" because the specs on the site is "ambiguous".  Conclusion:  Wayfair's measurements are, at best, suspect and at worst, intentionally misleading.   In any even, sketchy.