What's the difference between private warehouse and public warehouse?

A public warehouse is available for hire on a variable term basis and oftentimes will have multiple customers' products at a time. Some are specialized to deal with specific items or functions. Private warehouses are operatd by the company that owns the product being stroed within the warehouse. The company does not necessarily own the building (though the larger companies may choose to buy the building and land also) but does own all the products that come in and go out.