20" Extension Ladder

The 3520 Aluminum 20-foot Extension Ladder has a duty rating of 225 pounds and interlocking side rails. The D rungs are slip-resistant. Spring-loaded locks operate smoothly for easy operation. Shoes rest flat or are held in spur position with swiveling shoes feature. Mar-resistant end caps help protect the surface ladder is leaning against. Exclusive 3-piece rung-to-rail connection means twist-proof performance every time.