5 shelves. 21 34W x 24 14D x 18 78H. Uses canned fuel. 45 lbs. Aluminum cabinet. All double wall construction fully insulated with high density fiberglass insulation. Top carrying handle. Internal cabinet frame is constructed of 14 gauge steel. R4 Inner cabinet shall accommodate 4 to 5 16 pizzas or other packaged foods. Removable side rails and 5 wire shelves. R4S is heated by 1 small can of fuel placed in fuel drawer located in back of cabinet. By Hot Food Boxes, Inc.