The paper minis are designed to represent creature relative size category. To keep their fit in a 2.5"x3.5" card pocket page, the footprints of the large, huge, and gargantuan creature paper minis are scaled down, keeping them portable and streamlined.
Tiny: .5" x 1"
Small/Medium: 1" x 1.5"
Large: 1.65" x 2.1"
Huge: 2.13" x 2.82"
Gargantuan: 2.38" x 3.38"
Reference Card: 2.5" x 3.5"