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jack truss[′jak ‚trəs]
A minor truss in a hip roof where the roof has a reduced section.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A roof truss which is smaller in size than the others, usually because of location, as in a hip roof.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.