bridgeboard


Also found in: Dictionary.

bridgeboard

A notched board that supports the treads and risers of wooden stairs.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Available boards include Bridgeboards which permit the Amiga to run XT and AT software (attachments are also available which will allow the Amiga to run Macintosh software).