Icon of the Seas has 20 total decks, of which 18 are passenger-accessible decks running roughly from Deck 2 up to Deck 20.

Quick Scoop

  • Total decks on Icon of the Seas: 20 (this includes technical/crew areas).
  • Passenger decks (where guests can walk, dine, or stay in cabins): 18 , listed on deck plans from Deck 2 through Deck 20.
  • Passenger-cabin decks: Most references list 18 passenger decks or note 19 decks, 11–12 with cabins , reflecting slightly different counting methods (whether certain service decks are included).

So if you’re just wondering “how many decks on Icon of the Seas?” for typical travel and forum discussion, the common answer people use is: 20 decks overall, 18 used by guests.

Information gathered from public forums or data available on the internet and portrayed here.