,Model##Other##,Description##Other##,Unit Width##length##inches,Capacity##other##,Standards Conformance##other## "18"""" Wide",U-302,UPNOVR U-302 Parapet Access with Return Caged Vertical Aluminum Ladder,18,1000 lbs per rung,OSHA and ANSI A14.3 "24"""" Wide",U-302,UPNOVR U-302 Parapet Access with Return Caged Vertical Aluminum Ladder,24,1000 lbs per rung,OSHA and ANSI A14.3