a framework of crossing beams used for spreading heavy loads over large areas.
Origin of grillage
Also called grid.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for grillage
Historical Examples of grillage
an arrangement of beams and crossbeams used as a foundation on soft ground
Word Origin for grillage
C18: from French, from griller to furnish with a grille
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