Good morning ladies, i am new in cake decorating i have my first big cake, the customer requested one round tier cake design star wars theme, to feed 80 people, have you done before one single tier with this amont of servings? If so which size pan did you use ?a 15  inch will work? I guess it is more covenient to make three tiers, but she wants one single tier. Thanks!

I am not a decorator or expert in any way; I just hang out here because I'm a wannabe.

But the first thing I thought was cupcakes on the side?  If she was willing.  My brother had a dice cakes for his BD, and the baker had cupcakes on the side on a cupcake tree.

It was nice.

According to the Wilton guide for wedding sized pieces 1" x 2" at 4" tall, a 14" round cake will give you 82 pieces!

Hi - Here is a link to Wilton's serving guide.  There are many other ones online but this one is pretty standard.  If the cake is for a birthday be sure to use the Party Serving guide.  There is a big difference between a wedding cake and a party cake. 

http://www.wilton.com/cms-baking-serving-guide.html

Hope this helps.  Good luck. 

food for thought since you are starting out  -- just pick one serving chart -- i'd recommend the Wilton wedding cake data chart --because otherwise you have to keep two different pricing charts -- i don't know why Wilton made that dang party serving size -- the wedding cake serving chart is the industry standard  -- the serving size of 1x2x4  sounds small but it is the industry standard it is the right size --

for example two teen agers could cut a 9x13 in half and make two servings out of it but that's not how it works at a celebration when party planners are ordering a special cake or if they do want larger servings then they order more servings -- you don't increase your stated serving size -- you just sell more of those

http://www.wilton.com/cms-wedding-cake-data.htmlhtml

best to you

and i think you are spot on with a 15" cake 4" tall

k8memphis thank you so much for your advise this is exactly what i needed to hear, i was having a hard time deciding if a 15 inch will work due to the size of the serving, I need to repeat to myself what you just said, want more cake, order a big one! Thanks again! Will go with 15 inch cake. 

A 4" tall cake is a big cake.  You can't think of them like grocery store cakes that are about 2" high.  They will have plenty of cake and probably some left over too.

I know everyone thinks a 1x2x4 is small but if you cut it in 1/2 so you have 2 pieces 1x2x2 and stack them you end up with the same amount of cake as the so called party size!   Try it with a piece of wood or styro.  

Be sure to use a very sturdy base board - at the very least glue 2 cake boards together.

Thanks a lot for your advises and time!

I have the cake slicer app. Downloaded on my phone. It works great! You can change the size of slice accordingly and it even gives you a diagram and tells you how to cut it!