Icon of the Seas has 20 total decks , of which 18 are accessible to guests.

Quick Scoop

  • Total decks on the ship: 20.
  • Guest‑accessible decks: 18 (the others are mainly technical/service areas).
  • Decks include stateroom decks plus decks with pools, waterslides, dining, and entertainment venues.

So if you’re wondering “Icon of the Seas cruise ship how many decks?”, the headline answer for most travelers is: 20 decks in all, with 18 you can actually use on your cruise.

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