If you're searching for a storage shed near Alton, IL then come visit us at Cook Portable Warehouses of Alton!Our sheds are built in a quality controlled environment and all have a lifetime warranty on treated components.If you're searching for more storage space, a hobby room or a workshop then Cook has exactly what you need.We offer a variety of different portable shed styles like our Lofted Barn, Lofted Garage or Utility Shed. Take a virtual tour of each of our styles and find the one that will fit your needs best.