underflooring

noun

underflooring

noun

Etymology From under- + flooring.

1

Usually A layer of flooring underneath the top layer or carpet.

If tenants want uncovered floors, then let them install cork underflooring.2009 August 20, “Be Quiet Up There!”, in New York Times:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.