Consists of rigid welded frames of two verticals and two hor izontals. The f rames are interconnected by scissors cross braces in all bays or alternate bays (for top 20 Meters) of scaffolding through pins welded on frames and lockedin positionby split pins. Cross Braces are supplied in sizes to suit frame spacings of 3, 2.5, 1.5 & 1 M. or any special sizes onrequest. Heights : 2000, 1500 & 1000 mm Widths : 1800, 1250 & 900 mm