AI'm fully aware of the size of a full sheet cake. Our cakes are delivered to us fresh baked as a full sheet (18 x 24) and we cut them down to half and quarter sheets as needed for orders. I have never actually made a 2 layer (as in, two 2" sheet cakes torted and stacked) but I would be open to it if a customer requested. Frankly, I find $850 astronomical for a full sheet, at least in my city. That's fondant, tiered wedding cake money here.

my sheet cake sizing comments were directed at op -- 

A^ K8, my comment was in response to leah_s saying she's seen stores calling a half sheet a full sheet. Anyway, I think OP has gotten her info and this thread is going in circles, so I'm out.

AI do torte sheet cakes and layer them - just like any other cake. I learned years ago from Indy Debi that the shape of the cake does not change its price, therefore a sheet cake is charged just like any other. Generally customers will opt for a lovely, designed, tiered cake instead. But for ease of serving some customers want the sheet style. Cake for 216 people, is cake for 216 people, no matter the shape. And thank you for the lovely comments. I'm mainly retired from cakes, but it was a *very* good business.

Most bakers would want a couple week notice and a deposit a few weeks ahead of time though.

I'll add your generosity of spirit with all the free advice you give here as well. You've earned your kudo's and any price your cakes went for babygirl x

At a well known bakery where I used to work, a full sheet cake with lemon curd (3 layers cake, 2 layers filling, 3.5 inches high) ran $136. To add a 4th layer of cake/3rd layer of filling, it would add another $45... so $181. 

Everything was scratch made - cake, lemon curd, IMBC and we were considered an "expensive" bakery.

We needed 2 days lead time for a cake that size with that filling....but keep in mind, we made hundreds of cakes every week and kept unfilled sheet cakes and lemon curd well stocked (it was a standard cake/filling combo sold in our cake case year round). 

For a kitchen cake (4 layers cake/3 filling/4" high) to supplement a wedding cake, a full sheet would be $400 out of my kitchen and I'd need a week lead time. No decorations, just iced smooth with bead or shell border - and only in conjunction with a more expensive tiered display cake though. 

I wish I could get what Leah can!! =)  - I wouldn't even know what a kitchen cake is if it wasn't for her..

Everyone has been so helpful!  I really appreciate all of the info.  I don't do this as a business, only as favors for friends and family as I do enjoy it.  However, there has been a "hiccup" with a friend, so that is why I made the original post.  

It sure is interesting how thoughts vary, but with most being on the same page.

Again, all of the information provided is of great value to me.

Thanks!

J~