Do you have to put a piece of cardboard in between tiers if it is only a 2 tiered cake?

I always do. It's easier to handle the cake when you are placing it on top of the bottom tier. I also use straws as dowels.

Yes,the weight of the cake, even a 6 inch will sink into the bottom tier and be a big mess. It is also easier to serve.

Yes, yes, yes!

Especially depending on the weight of the top tier, and how sturdy the bottom tier is. I have had a small top tier sink into my bottom tier when I thought they were small enough not to matter.

Thanxx but even if i have straws in for supports you think it will still sink into the bottom tier

you need to use several straws cut at the same height as the cake. There is a tutorial on stacking tiers. Search for it and it will explain it better than I can.

When you say "straws" are you taking about drinking straws? I have always wondered what people mean by straws. Thanks!

You can use drinking straws if you're talking about a small, light cake, otherwise many people are referring to bubble tea straws when they say straws. They are much stronger and wider. Google it if you don't know what they are and you will get lots of examples. They're pretty cool and probably easier to cut than those stupid plastic dowels. (Grrrrr!! Haha!)

Thanks so much for explaining this to me!

No problem at all!