Answer:
A broadsheet is much bigger than a tabloid and involves two folds, both vertical and horizontal.
A tabloid is smaller and folded only once, much like a regular magazine. In addition to the difference in size, tabloid journalism is known for being more sensational and gossipy whereas news in a broadsheet is typically more formal.
For example, in New York, the New York Times is considered a broadsheet, and the New York Post is considered a tabloid.