underflooring

English

Etymology

under- +‎ flooring

Noun

underflooring (usually uncountable, plural underfloorings)

1. A layer of flooring underneath the top layer or carpet.
   • 2009 August 20, “Be Quiet Up There!”, in New York Times‎^[1]:

     If tenants want uncovered floors, then let them install cork underflooring.