Adjusts to extension A-frame staircase and moreAerospace grade aluminum construction50% Wider rungs for added foot supportRock Lock and Quad-Lock palm and hinge systemAirDeck Workstation to keep tools and supplies handyTip and glide wheels with co-molded snap-on feet A-frame height: 5.1 to 9.1 feetExtension height: 11 to 19 feetExceeds all OSHA ANSI and CSA standardsWeight capacity of 300lbsANSI rating Type IA - Extra Heavy Duty IndustrialComes with set of ratchet levelers for uneven terrain
