Werner’s 16 ft. Aluminum D-Rung Extension Ladder boasts a duty rating of 300 lbs. and features extra heavy-duty I-beam side rails. The base and fly sections separate easily and can be used separately, while the guide brackets help ensure easy operation when raising and lowering the fly section. Made with safety in mind, the TRACTION-TRED D-rungs are slip resistant, and the heavy-duty, spring-loaded locks deliver smooth functionality. The exclusive ALFLO rung joint also means twist-proof performance every time, ensuring stability on a wide range of jobs.