sub·​floor | \ ˈsəb-ˌflȯr How to pronounce subfloor (audio) \

Definition of subfloor

: a rough floor laid as a base for a finished floor

Examples of subfloor in a Sentence

Recent Examples on the Web To create a rock-solid substrate for the tile, cover the subfloor with cement backerboard. Joseph Truini, Popular Mechanics, 25 Nov. 2020 For example, with a floating laminate floor, the condition of the subfloor won’t really matter. Sarah Baird, Good Housekeeping, 14 Sep. 2020 Phillips was underneath the subfloor removing dead chickens at the time of the incident. Carol Robinson |, al, 23 Dec. 2020 Secure the backerboard to the subfloor with 1 5/8-in.-long backerboard screws. Joseph Truini, Popular Mechanics, 25 Nov. 2020 Beyler concluded that the fire in Whitley’s house was not set intentionally and was electrical in origin, starting below the subfloor. Washington Post, 22 Oct. 2020 Parquet floors already come pre-stained, can typically withstand one refinishing, and are far easier to install than traditional hardwood planks: simply glue the tiles to the level, above-grade subfloor. Sarah Baird, House Beautiful, 14 Sep. 2020 Flooring adhesive is a type of permanent glue that bonds your flooring to the subfloor or underlayment. Sarah Baird, Good Housekeeping, 14 Sep. 2020 Further dismantling Bailey’s theory, Beyler found, was that the hole in the hardwood floor was smaller than the hole in the subfloor. Washington Post, 22 Oct. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'subfloor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of subfloor

1838, in the meaning defined above

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The first known use of subfloor was in 1838

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Cite this Entry

“Subfloor.” Dictionary, Merriam-Webster, Accessed 21 Jun. 2021.

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