Transom 1 : A lube or beam spanning across ledgers of a scaffold to form the support for boards forming the working platform or to connect the outer standards to the inner standards. See: Putlog
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}