AI have had a request for a three tiered square cake to feed 100. The bride wants each tier rotated so they are offset. My question is what size tiers do I use to feed 100 and make sure the top and middle tier corners aren't hanging off the edge of the tier below it? TIA!

It's easy to figure out how many servings each *sq* pan will serve; Since you are talking 'tiers' then each one should be between 3 and 4" tall.  All you need to do is find out many 2" slices on one side and 1" slice on the other.  Example: 8" square tier will be cut into four 2" slices and 8 one" so the total servings from an 8" sq  will be 4x8= 32.    You can also go to Wilton's site and look for the serving chart.

To see what size cake will fit on top of anotherstack up your pans :) 

AThanks so much for the info! The only problem is I can't stack the pans because right now I only own 12, 10 and 8 inch squares which I know won't work :(

yes what kakeladi says

and if you don't have the pans in stock yet, cut out newspaper squares and use them to stack up

Why won't the 12, 10 and 8 work? Im currently doing the EXACT same thing, square offset to feed 92. Im using 10", 8" and 6" cos I looked up serving numbers online and that gave me what I needed. You don't need to offset them THAT much, and it still gives you the look they want.

I was going to post here though, looking at my cake now, my ****ty cake tins only make a layer that is 1'' thick and only planned on making 2 layers (haven't used these tins before). I'm thinking that i'll have to make 2 extra layers to get the number of servings I need?

(Just took a cake out of the oven and REALLY need some new tins. One side is almost 2'' tall and the other is just 1''. AH!)

AThank you, thank you , thank you!!!!