A diagonal tie across the wall plate at the corner of a hipped-end roof for receiving the thrust of the hip rafter.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
dragon beam, dragon piece
A short, horizontal piece of timber which bisects the angle formed by the wall plate at the corner of a wood-frame building; one end serves to receive and support the foot of a hip rafter; the other end is supported by a dragon tie.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.