One solution is to screw a standing pallet into the wall of your shed. Now, you've created vertical storage to easily keep items off the ground.
rubbermaid black steel storage shed tool hanger rack are built with double wall panels to resist dents. The panels are made to exacting standards for a snug fit and solid construction. Many come with paintable steel doors for extra security and long service life. Best of all, the entire structure is impervious to practically all weather extremes and virtually maintenance free.