A character or a monster is considered Huge when he, she or it stands 16 to 32 feet tall while weighing 2 to 16 tons. Such creatures usually take a 15 ft. square of place and have 10 ft. reach if they are long and 15 ft. reach if they are tall.
A Huge creature gets a -2 size penalty to Armor Class and attack rolls, a +8 size bonus to grapple checks and a -8 size penalty on Hide checks. A Huge creature’s carrying capacity is 4 times as good as that of a Medium character (6 times for quadrupeds). A Huge creature uses much larger weapons than a Medium character.