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subfloor

American  
[suhb-flawr, -flohr] / ˈsʌbˌflɔr, -ˌfloʊr /
Often subflooring

noun

  1. a rough floor beneath a finished floor.


subfloor British  
/ ˈsʌbˌflɔː /

noun

  1. 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.

The homeowner was pleased when he walked across the plywood subfloor and there was no bounce whatsoever.

From Seattle Times • Dec. 25, 2023

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

If that doesn’t work, or if your cat seems to be returning to the same area, you might need to pull up part of the carpet, replace the pad and seal the subfloor with shellac.

From Washington Post • Jul. 18, 2022

You can also install peel-and-stick flooring over an unfinished subfloor or concrete to “fake” a completed floor, says Elizabeth Rees, co-founder of Chasing Paper, a company that produces removable wallpaper.

From Washington Post • May 10, 2022

“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