The cook utility is the perfect storage building and is the most adaptable of our shed designs. the tall sidewalls are ideal to hang taller shelving and the heavy duty floor holds up to any storage challenge.. Everything you need to know about portable buildings in one place! welcome to the official channel of cook portable warehouses, the leader in the shed indust.... Rent to own leasing with the option to purchase was established by cook buildings as an alternative to mini-warehousing. our no strings attached plan allows anyone to have a storage facility in their own backyard or business, when and where they need it..