Frigates are the smallest and fastest of the heavier ships. They typically have enough space for the basic amenities needed for longer voyages.

(Pictures for reference only. It does not have to look like that.)

Minimum Block Count: 200
Maximum Block Count: 300
Minimum Percentage of Wood Planks/Slabs/Stairs/Trapdoors/Fences/Logs (Hull): 30%
Minimum Percentage of Wool/Banners (Sail): 30%
Maximum Number of Chests: 4
Blocks skipped when cruising: 8
Speed: 0.6