Cotterman Company manufactures The SingleTrak, DualTrak, and DualSideTrak Ladder Systems specifically designed for retrieval of stock from shelving. The ladders roll along a track that is mounted on the shelving. Each of the three products has distinctive features that are suited for the varying requirements of our customers. The primary application for Track Ladder systems is in retail stores, and much of our innovation in design of these products stems from working with national store chains.