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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

This tool has a very thin blade that allowed me to undercut the door trim that extended down to the subfloor.

From Seattle Times • Mar. 4, 2024

The subfloor needs to be in the same plane so the LVP interlocks and stays locked when you walk on it.

From Seattle Times • Mar. 4, 2024

It would have taken the builder just three extra hours to install aluminum heat transfer plates under the wood subfloor in the bathroom.

From Seattle Times • Mar. 7, 2023

The plank edges interlock, so the flooring acts as a single unit that “floats” over the subfloor but is not attached to it.

From Washington Post • Feb. 3, 2023

“It’s the base for us to put the subfloor on. Then the house,” I say.

From "The House That Lou Built" by Mae Respicio

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