I have a lady that wants a wedding cake she wants 8' on the bottom and 6' on the top. Will that feed 40 people? its only going to be 2 tier..

Wilton Wedding Chart:

8" serves 24
6" serves 12
Total servings: 36.

http://www.wilton.com/wedding/wedding-cakes/wedding-cake-data.cfm

I made those exact sizes for a baby shower to needed to feed ~30 people. When the cake was delivered the client questioned whether it would feed 30 - 40 people. I think it is appearances.

Because they are used to cutting cake in pie=shaped wedges instead of wedding rectangles.

I consider it 38 servings, here is my serving chart for how to cut and get the servings. I have cut these cuts (using indydebi's method) and this is how many servings I got out of the cake, that's what I go by. If the customers doesn't cut this way, that's their issue in the end. You can only hold their hand so far and then you have to let them go!

Thanks for posting the charts.

Tina- love those charts.

Are these charts for a one layer or 2 layer cake?

@KHalstead = is that cutting chart based on 2"x1" wilton wedding slices?

Oops, I just looked and realized they are for 2 layer. Ok, so is it just standard to half the serving size if you only make one layer. Or is it not that easy. (Sorry if this is a dumb question). I just want to make sure.