What were Clydesdale horses used for?

Clydesdales are a draft breed, and as such were bred as work horses capable of pulling large loads and working in the fields. They are usually used now as show horses, circus horses, for crossbreeding to create warmblood and sport type horses... and Clydesdales make up the famous Budweiser horse team. Clydesdales are sometimes, but infrequently used as riding horses.

Clydesdale horses are too big for some people to ride.... so people usually use them to pull carriages.