Icon of the Seas has 20 decks in total, of which 18–19 are passenger- accessible and 11–12 have cabins, depending on how sources count technical/service levels.

How Many Decks Is Icon of the Seas?

Royal Caribbean’s Icon of the Seas is currently the world’s largest cruise ship, and its deck count can look a bit confusing because different sites describe it in slightly different ways.

The Core Numbers

  • Total decks: 19–20
    • One detailed guide notes that Icon “boasts a total of 20 expansive decks.”
* A major deck-plan database lists **19 total decks** , with the highest numbered deck being Deck 20.
  • Passenger decks:
    • One cruise-planning site notes 18 passenger decks from Deck 2 to Deck 20.
* Another source states **19 decks, 11 with cabins**.
  • Decks with cabins: 11–12 , depending on how “cabin deck” versus mixed public/cabin decks are counted.

In practice, when cruisers ask “how many decks is Icon of the Seas,” most cruise resources and planning tools treat it as a 19‑deck ship (with 20 deck levels counted in some technical specs).

Quick Facts for Cruise Planning

  • Approximate total decks: 19–20 (you’ll see both figures quoted).
  • Passenger decks in use: 18 (Deck 2 through Deck 20).
  • Decks with staterooms: about 11–12 , covering the main accommodation areas.

If you’re just trying to picture the ship, you can safely think of Icon of the Seas as a massive 19‑deck cruise ship with nearly all levels in active use for passengers.

Mini FAQ

Why do some sites say 19 decks and others 20?
Some sources count every structural level, including technical/service decks, and round up to “20 expansive decks,” while others list 19 total decks with Deck 20 as the top numbered deck but treat one level differently in their total count.

Does it matter for picking a cabin?
Not really; what matters more is which deck with cabins you choose (there are around 11–12 such decks), plus how close you are to neighborhoods like Central Park, Surfside, or the Royal Promenade.

TL;DR: Icon of the Seas is usually described as having 19 total decks (often marketed as 20 deck levels), 18 passenger decks, and around 11–12 cabin decks.

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