LEAD TIME IS APPROX 12 MONTHS. These 3 section extension ladders incorporate Duo-Safety's exclusive tongue and groove arrangement. This outstanding construction design holds the sections firmly and rigidly, without brackets, hooks, or obstructions of any kind. These lightweight compact ladders require a minimum of banking space - and have the extra advantage of being especially stable and rigid. If you are looking for something that is more compact and for the home, check out this 2-story fire escape ladder.