Dictionary.com

board rule

noun Building Trades.

a measuring device having scales for finding the cubic contents of a board without calculation.

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Origin of board rule

An Americanism dating back to 1840–50

Words nearby board rule

board of supervisors, board of trade, Board of Trade Unit, board of trustees, boardroom, board rule, boardsailing, board school, board shorts, board side, board sport
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for board rule

board rule

noun

a measuring device for estimating the number of board feet in a quantity of wood
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