A room in which unused furniture or other lumber is kept.(noun)
Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)
Use "lumber room" in a sentence
"Among other monstrosities in this lumber room was a largish blackjapanned box, excellently and ingeniously made some sixty or seventy years ago, and fitted with every imaginable object."
"So in the lumber room there were bad Sir Edwin Landseers and pathetic William Henry Hunt birds’ nests: and other Academy stuff, enough to frighten the daughter of an R.A. She determined to look through it one day, and clear it all."