FS1504 4' LOUISVILLE FIBERGLASS STEP LADDER TYPE 1A 300# | This Louisville 4 ft non-conductive fiberglass step ladder has a load capacity of 300 lb, rated ANSI Type IA. This ladder is equipped with the new and innovative raptor top with magnet and multiple tool slots, SHOX impact absorption system, new raptor boots with non-marring bonded tread mechanically fastened to the upper boot to create a secure slip-resistant footing, inside spreader braces, wide back braces and double-rivet step construction. The Louisville FS1504 step ladder meets or exceeds the safety standards set by ANSI, CSA and OSHA.