Living and Working Spaces:
Great Cabin: The largest room, used by the captain for dining, entertaining, and navigation. 
Officer's Cabins (Staterooms): Private spaces for officers, often doubling as offices. 
Crew's Berthing: Sleeping areas for the crew, sometimes in hammocks or dedicated spaces. Boys and girls separated  by a courtain
Galley: The ship's kitchen, where meals were prepared. 
Gun Deck: Where the ship's cannons were mounted and the crew operated them. Also served as living quarters for many. 

Storage and Utility Areas:
Hold: The lowest part of the ship, used for storing cargo, provisions, and other supplies. 
Powder Room (Magazine): A secure space for storing gunpowder, often with a separate light room for illumination. 
Bread Room: Adjoining the galley, used for storing flour and ship's bread. 
Water Storage: Casks or tanks for storing fresh water, typically located low in the ship. 
Other Storage: Various lockers and compartments for different types of stores, such as food, tools, and spare parts. 
Orlop Deck: A deck below the gun deck, often used for cargo storage and as a work platform. 

Other Important Areas:
Forecastle (Fo'c'sle): The raised deck at the front of the ship, often used as sleeping quarters for the crew. 
Quarterdeck: A raised deck behind the main mast, where the captain commanded the ship and the ship's colors were kept. 
Capstan: A winding machine used for raising and lowering the anchor. 
Steering Place: Where the helmsman controlled the ship's direction. 

We  should also think of a medical bay