subfloor(redirected from counterfloor)
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sub·floor·ing(sŭb′flôr′ĭng) or sub·floor (-flôr′)
A rough floor over which a finished floor, flooring material, or carpet is laid.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Building) a rough floor that forms a base for a finished floor
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014