So Im sorta new at this. I've been baking forever, and everyone has always loved my stuff so I opened my own home business. My cupcakes always turn out great. My sheet cakes, perfect. When I try to do tiered cakes though, I can't even move the cakes without them falling apart. I have no idea whats happening! Why are my cakes breaking!?! Please help!

Oh I'm sorry your having so much trouble with your cake, How are you stacking them boards, dowels etc?

It does sound like your support system isn't doing the job. The sps system might help. http://cakecentral.com/cake-decorating-ftopict-603925.html

Are your cakes breaking when you take them out of the pans, after they are frosted/covered in fondant, or after you've stacked them?