Adjust to A-frame extension staircase trestle and plank and moreAerospace grade aluminum construction - 20% lighterWide-flared legs with Co-molded snap-on feetCast aluminum and quad lock palm and hinge systemCast aluminum rock locks extension systemHinge lock spreader systemA-frame height: 6.1 to 11.1 feetExtension height: 13 to 23 feetExceeds all OSHA ANSI and CSA standardsWeight capacity of 300lbsANSI rating Type IA - Extra Heavy Duty Industrial
