how much does 1/2 sheet feed
1 A 1/2 Sheet Cake Pan is 11 by 15 inches, which will usually serve 18 to 40 people. 2  This size is a lovely option for an anniversary party or interoffice party.3  A full Sheet Cake Pan is 18 by 24 inches, which will usually serve 48 to 96 people. 4  This is a fabulous event cake for charities and grand company celebrations. A 1/2 Sheet Cake Pan is 11 by 15 inches, which will usually serve 18 to 40 people. 2  This size is a lovely option for an anniversary party or interoffice party.