A piece of lumber that has been matched, shiplapped, or patterned for use as siding.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
Lumber that, in addition to being dressed, has been matched, shiplapped, or patterned.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.