When you have made up your mind to buy a cargo van then there are further many questions like should i buy a new or an old van, should i buy a full size cargo van or a small one and many more. All these factors needs to be taken into consideration. The size of the van should be decided perfectly on the basis of its requirement for the business. Also there are cargo vans having different type of doors. Some of them comes with dual-side doors,others have doors only on the one side.