beach chair vs deck chair

beach chair

noun
  • A special chair designed to provide comfort and protection from sun, wind, rain, and sand on beaches frequented by tourists. 

deck chair

noun
  • A folding chair in which a wooden frame supports a length of canvas; traditionally used on the beach or onboard a liner. 

How often have the words beach chair and deck chair occurred in a corpus of books? (source: Google Ngram Viewer )