Board Stage Brackets / hopups fit into the ÒVÓ pressing of the standard which is nearest to the wall. The 2 & 3 BSB have holes into which tie bar pins are attached. They are used to provide cantilevered platform on the inside of the scaffold nearest the wall.
Standards are vertical structural member of the scaffold system which are made from 48.3 OD X 4mm Tubes. Standards have ÒVÓ pressings in clusters at 495 mm centres, which provide location points for Transoms, Ledgers, Braces,, Hopups etc and a spigot fixed at the top