This Louisville 4 foot fiberglass twin platform step ladder has a 250lb load capacity, rated ANSI Type I. It features a slim, gapless slip-resistant platform with a top rail guard. This ladder can be used from both sides simultaneously. It is equipped with a heavy duty gauge steel hinge, DaBoot with non-marring bonded tread mechanically fastened to the upper boot to create a secure slip-resistant footing, and double-rivet step construction. The Louisville FMP2004 twin platform step ladder meets or exceeds the safety standards set by ANSI, CSA, and OSHA. Looking to add casters for easy mobility? Model FMP2004-4C comes pre-installed with casters.