ALCO-LITE™ truss construction ladders have been a tradition in the industry since their inception by our founder. Built with the same work ethic and craftsmanship as those of the 1930’s, you can depend on their truly traditional quality.
The tubular construction of Duo-Safety’s 500-C Series incorporates the inherent strength of a rectangle, a channel and an “I” beam combined to provide the ultimate in strength and safety. Construction features include: double parallel fins; double set of truss plates; ribbed, extruded rungs, electrically welded to outside of truss plates; and aluminum rivets.
These 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 compact ladders require a minimum of banking space – and have the extra advantage of being especially stable and rigid.
The ultimate in handy, convenient ladders – Light weight, these ladders fold into a compact bundle for storing or carrying. In the open position, special locking devices keep the ladders absolutely rigid. Equipped with Duo-Safety Ladder shoes as an extra precaution.