subfloor

American

[suhb-flawr, -flohr] / ˈsʌbˌflɔr, -ˌfloʊr /

Often subflooring

noun

a rough floor beneath a finished floor.

subfloor British

/ ˈsʌbˌflɔː /

noun

a rough floor that forms a base for a finished floor

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of subfloor

sub- + floor

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023