Artist: Ignacio Bazan Lazcano

Colossal Size

The largest official creature size is Gargantuan, at 20 by 20 ft. If you create a new creature of greater size, or believe that the stats of an existing creature falls short, consider granting it the Colossal size.

Colossal size starts at 25 by 25ft and increases from there. Each creature of Colossal size has its precise size listed. For example, following cannonical proportions, the tarrasque should have the following classification at minimum:

Colossal (50 by 50 ft) monstrosity (titan), unaligned.

For effects that scale with a creature's size, consider a Colossal creature to be 1 size larger than Gargantuan for each 20ft in its dimensions above 20ft, rounded down. A 25 by 25ft creature is one size larger than Gargantuan, a 45 by 45ft creature is 2 sizes larger than Gargantuan, and so on.