Stainless steel cabinets are features in some indoor and outdoor kitchens around the world. The type of stainless metal is especially useful outdoors if the area is exposed to the elements. You can place your cabinets around your grill for a complete outdoor kitchen. If this is your situation, you can get cheap outdoor stainless steel cabinet doors from a variety of outlets.
Visit an outdoor kitchen or outdoor gourmet outlet. These retail locations feature stainless steel kitchens, cabinets and doors can often be found at the cheapest prices at factories or large outlets.
Search online sellers or auction sites for cheap cabinets. Often sellers are looking to get rid of old or used cabinets, and will deal them for discounted prices online.
Locate a company that specialises in stainless steel appliances or products. Many of these outlets will feature cabinet doors that can be purchased by themselves. These might be found because they are a discarded part of a set, and could be sold for far under retail value.