Prep your sheet cake or cupcakes for travel with these White Cardboard Sheet Cake Boxes. Perfect for holding a 12 x 18 in. sheet cake or 48 cupcakes, these white cardboard boxes are a must for keeping your cake protected and safe before serving. These disposable cake boxes are white in color, perfect for matching to any holiday or celebration! Easy to assemble, these cardboard sheet cake boxes come with one fold-out base and one fold-out lid (includes 2 complete boxes). For extra support, place your cake or cupcakes on a cake board (sold separately) before placing in the box. These cardboard treat boxes are also ideal for packaging other sweets, such as scones, muffins, breads, cookies, candies and more!