Ok, I'm making a 2 tier cake this week and each tier will be five inches tall because I'm using a 3 inch deep pan and a 2 inch deep pan for each tier. My question is, since the tiers are going to be an inch taller than my standard, do I need to put a board and dowels between the 3 inch layer and the two inch layer? Thanks!

You didnt' say the width of the pan, weight can be an issue.

You wrote:
"because I'm using a 3 inch deep pan and a 2 inch deep pan for each tier."

Anyway, err on the side of caution and board and dowel each tier.

Oh, you're right, I didn't. The bottom tier will be a 10 inch round and the top tier an 8 inch round, and both five inches tall.

No. My average layer is 5" everytime. I don't even do it for 6". Now, when your talking 8", then every 4" there is a board.

You shouldn't need a cakeboard between the 3 in and the 2 in layers but you will want to put a cardboard and some kind of support (dowels, bubble tea straws, etc) between the 10 in and the 8 in cakes. Also, if they will be transported stacked, make sure to put a dowel through both tiers or you may have a problem with them sliding.

Ok, thank you all so much for your fast responses! That's why I love cake central.