Double-decking

Double-decking

Insertion of a mezzanine or extra floor in a building with a high ceiling or a two-story space to increase the usable area.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
"Double-decking" the Van Wyck, or building another roadway above the existing one, would definitely help traffic, but the communities affected would be very averse to this idea, and understandably so.