TopicWhat size is a half sheet cake.
PostedThu, Sep 12th 2019 08:53 AM
It takes two 18-ounce boxes of cake mix to make a half sheet cake, measuring approximately 12-by-18 inches. A half sheet cake provides 36 to 108 servings, depending on how it is sliced. Commercially prepared half sheet cakes are often made by assembling two 9-by-13-inch cakes on a cake board.
Use recipes designed specifically for a sheet configuration. Sheet cakes are usually thinner than standard cakes so they can be prone to texture and moisture issues. Prepare your pans well with flour, butter, and parchment paper to prevent your sheet cake from sticking.