stanchion vs subfloor

stanchion

noun
  • A vertical pole, post, or support. 

  • A framework of such posts, used to secure or confine cattle. 

verb
  • To confine by means of stanchions, typically used for cattle. 

  • To erect stanchions, or equip something with stanchions. 

subfloor

noun
  • The floor structure supporting and underlying the visible flooring or other finishing surface such as a carpet 

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