I'm not a cake baker but I do bake. My friend asked if I would make her cake for a baby shower (which I hve done for other friends). At the time we were thinking 40 people. Now we're getting the rsvps in and we at at 73! So I'm thinking of making 2 1/2 sheet cakes. Is there a way to put them together to look like 1 cake? Or do you recommend just making 2 separate? Is that too much cake for 73 people?

I have made a full sheet before using 2 1/2 sheets a lot when i worked for a large bakery. You just need to make sure to "glue" the two sheets together with buttercream and make sure you have it on a very rigid board so it does not bow & crack during transport. Also make sure you level the 2 1/2 sheets so they are the exact same height. I use this same "Glue & level" approach when putting to gether 2D cakes from multiple cake pieces.

I have done this a few times also. I will make 2 12x18's or 2 11x15's and put them side by side with buttercream to "glue" them together and then ice it over as one big cake. Agree with AmysCAKES, you definitely want to have it on a sturdy board before you ice it to keep it from cracking right down that seam. But it's really not too hard. Good luck!

http://www.wilton.com/cakes/making-cakes/baking-wedding-cake-2-inch-pans.cfm

A two layer 11x15 will serve 74. A two layer 12x18 will serve 98.

I usually make 2 12 x 18's and stack them...you never know who is cutting the cake, so I show them how to make sure it is cut...they still get it wrong...if you stack the cake, it just looks more professional and tastes so much better (due to the filling). It is also easier to transport and decorate. You will get the pieces you need and hopefully, a few left over pieces for those who are too busy to eat.

Thank you all for replying so quickly! I definitely want to fill the cake, so maybe stacking will be easier.

Probably 1/2 the cakes I do are full sheet cakes made by putting 2 1/2(12x1 sheets side by side. I put them on 1/2 in foam core boards cut to fit a full sheet box. I also fill them. I often make one sheet chocolate and the other sheet white or whatever flavors the people like. As the others have said make them both the same height and cover the whole thing as one big cake.