With the The Little Giant Ladder Systems you will get the versatility and stability you need to get the job done right. This ladder system is 20% lighter than industrial rated ladders and is constructed of aircraft grade alloy for extra durability. The redesigned dual pin hinge and wide flared legs will also put you in the safest position to get the job done without getting stuck on the roof. The Little Giant Ladder Systems exceeds OSHA, ANSI, and CSA standards and is rated to hold 300 pounds.