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[suhb-flawr, -flohr] /ˈsʌbˌflɔr, -ˌfloʊr/
a rough floor beneath a finished floor.
Also called blind floor.
Origin of subfloor Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for subfloor
  • It should be bonded, not nailed, to the subfloor with latex-cement mortar.
  • It is nailed or screwed to the subfloor and joist and driven horizontally with a punch or nail set.
  • These are put together in sections on the subfloor and raised, barn-style, by two or more people with poles.
  • Both can eventually cause the floor framing and subfloor layer to flex or warp.
  • Floorboards laid over a solid subfloor automatically receive such support.
  • When you are sure that you've located the wall, drill through the subfloor and the wall plate into the wall cavity.
  • Blisters form in vinyl flooring when a small section pulls away from the adhesive on the subfloor.
  • One such way is to use heat to loosen the flooring from the subfloor.
  • Floor joists-The main subfloor framing members that support the floor span.
  • When a subfloor is not tightly connected to the joists below or the floorboards above, a squeak results.
British Dictionary definitions for subfloor


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
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