An extension ladder, or telescopic ladder, is ideal for tradespeople working on the outside of buildings at height. They're constructed from two or more sections which slide apart and are then locked in place at maximum extension. This makes extension ladders easy to transport and store, as when fully collapsed, they take up considerably less space. Compact and lightweight, telescopic ladders are a particularly useful option for quick tasks and when space is tight. Whether you know them as extendable ladders, a collapsible ladder, or extending ladders, they're a fantastic multipurpose tool comprised of many more sections that slide inside, rather than over, each other. Shop popular brands, including a Werner telescopic ladder or a MacAllister telescopic ladder, to name just a few!