A two-layer full sheet cake can serve between 80 to 111 people. A full sheet cake measures 16 inches by 24 inches. If the sheet cake has three layers, then there are between 115 to 158 pieces of cake.
The number of pieces that can be cut from a full sheet cake depends on several factors, such as the type of occasion and number of cake layers. For example, party cake portion sizes are typically 2 inches by 1.5 inches. For a wedding reception, the cake piece size is smaller and can be 2 inches by 1 inch.
When serving cakes at an event, it is important to serve them at the right temperature. For example, butter cakes should be served at room temperature..