The State Library's collections and services are located over six floors of the Alexander Library Building:

• Ground Floor
  Centre for the Book, Arts & Literature collections, State Records Office, Newspapers, The State Library Shop
  

• Mezzanine Floor
  State Film & Video Library, Readers Centre
  

• First Floor
  Business and Management collections, Social Sciences collections
  

• Second Floor
  Music and Performing Arts collections, Science & Technology collections
  

• Third Floor
  J. S. Battye Library of West Australian History, State Librarian's Offices, Board Room
  

• Fourth Floor
  Heritage Material Researchers' Room