Finally, a  ladder that makes sense!           The Xtend & Climb is the answer to our prayers. 2.5 feet closed and 12.5 feet open, it only weighs 25 lbs (heavy duty available). It's made of 6061 Alloy and is "engineered to meet or exceed rigid industrial standards". It can be used partially or fully extended. It's made by Core Distribution, Inc. and can be found at your local hardware store (list available by state on website). Go out and get the last ladder you'll ever need.