I have been asked to do a cake for 300 people. I don't know what is goin on with my brain but I'm having a hard time figuring out what sizes I would have to put together to make it work. The lady is coming by on Monday to chat about it and would like options (square round oval). If someone could please help my non working brain out it would be greatly appreciated!
I did a 6 tier, 16,14,12,9,6 (I think) for a wedding that was to serve 300. I also made a smaller 8" cake for the kitchen just in case. It was round. They had alot of cake left over. The square cakes serve more and are easier to cut. I would have to look at a serving chart to see what sizes you would need but I am sure someone here will know.
Check out the Wilton guidelines
http://www.wilton.com/cakes/tiered-cakes/serving-amounts-200-300.cfm
HTH
Serves 296: 8, 10, 12, 14, 16 rounds
Serves 304: 6, 8, 10, 12, 14 rounds with 4- 8" round satellite cakes.
You could also stairstep 2 8" rounds on each side of the stacked cake.
Serves 302: 6, 8, 10, 12, 14 squares with 8" square in kitchen
Serves 302: 10, 12, 14 squares stacked with 6, 8, 8 squares stairstepping on pillars beside the stacked cake
*Note- these are all including the top tier in the servings. If they want to save the top tier adjust the sizes or add a kitchen or satellite cake.
Just a few ways to get you started. Have fun with it 
In rounds 6/8/10/12/14/16 = 311. I've done quite a few of them.
This was going to be my suggestion. I have a dummy of these dimensions in my shop window and it's been great to show people "This is a cake for 300 .... your cake will be tier 1, 3 and 5.'
Is this for a wedding? How many people did they invite? (i.e. are they REALLY expecting 300 people to show up?)
indy, I have tried to tell her not to expect everyone she has invited to show up. She is very insistant that she needs a cake for this many. Maybe face to face I can convence her. I almost turned her away. While on the phone she informed me she had a tasting and liked the cake but the bakery wanted almost $700. for the cake. Her comment to that was "I can pay it, I just don't want to." My only reasons for not turning her away was #1 money is always nice #2 Someone has got to nicely bring this girl back to reality!!! Wish me luck
Well, we met and she wasn't as bad as I feared. Just a little misinformed I talked her into a smaller cake but not by too much. He is the son of the preacher so they are afraid of the whole congregation showing up. I think parents suggested them have extra just in case. Would rather have too much than too little. It was a nice meeting! Thank you all again for your help!
He is the son of the preacher so they are afraid of the whole congregation showing up.
Oh this is one of the BIG exceptions to the 60% rule! I use the phrase "if htey are very involved in their church" .... and preacher's son qualifies WAY higher than that! 
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