What horse is the same size as a Clydesdale?

Many of the draft breeds are of a comparable size. You can find easily a Clydesdale, Shire, Percheron all 16.3 HH. as an example. But in the last 25 years the 'sport horse' has gained new popularity and has been bred much taller than ever before. It is not uncommon to see an 18HH eventer or show jumper.