Large cargo hold
From Cantr II Wiki
This is a large area below decks for cargo storage that can be built aboard a galleon or skimmer. This hold allows most machines the require a building to be constructed aboard the vessel.
Construction
Object: Large ship cabin
Days needed: 15
Raw materials needed: 10000 grams of wood
Objects: none
Tools needed: stone, bronze or regular hammer
Build/Repair Skill: Shipbuilding
Capacity
People: 10
Weight: 900000 grams