floor of the ship like 1st and 2nd
deck
That is 'the deck'
deck
The deck.
cabins
Your house can have a 'floor one' and a dungeon. If you consider the dungeon to be another floor, then yes. If not, then no.
boat house
The East Room is on the second floor of the White House.
You can't. There is no to get a second floor added to your house.
The bridge aka pilot house, wheel house is where the ship is driven or piloted from. There you will usually find the ship's wheel and the other controls needed to navigate the ship.
Light can go before house, ship, and year.