This Louisville 20 foot fiberglass extension ladder has a 300 pounds. load capacity, rated ANSI Type IA. 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 also includes the patented Quic LOUISVILLE LADDER 20-FOOT FIBERGLASS EXTENSION LADDER, TYPE IA, 300-POUND LOAD CAPACITY, FE3220