This Featherlite® 20 ft heavy duty fiberglass extension ladder has a 375lb load capacity, rated ANSI Type IAA. It is equipped with the MAXLOCK rung lock, custom engineered from a patented, advanced molecular polymer, MAXLOCK is the strongest, toughest, lightest rung lock ever made. This ladder includes the patented QuickLatch RungLock system that provides a simple, intuitive method of securing the fly and base sections of the ladder when extended. The ladder features outside slide guides, aluminum rung connector plates, D-shaped rungs fully serrated for a slip resistant surface, non-marring rail end caps, rope and pulley, and full heavy duty metal boot with steel swivel safety shoes to be used with the tread down or in spike position. The Featherlite® 6220D fiberglass extension ladder meets or exceeds the safety standards set by ANSI, CSA, and OSHA.