a horizontal board, as in a fence.
Carpentry. ribbon(def 8).
Origin of ledger board
First recorded in 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for ledger board
a timber board forming the top rail of a fence or balustrade
Also called: ribbon strip a timber board fixed horizontally to studding to support floor joists
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