What width of dowel do you guys use for the center dowel? I'm transporting a four-tier cake Saturday (only a little nervous about that!!). I always use about 1/4" dowel for the suport and center. But, I've never made a four tier, must less had to transport it already assembled. Do I need to go with a larger diameter for extra support? If so, how large?

Hey there, there are a lot of other people here with more experience than me but I will tell you what I do and so far, knock on wood, I had never he'd a problem with my large (tall cakes).

For the support between the tiers I use hollow plastic dowels. They are wider than the wood ones and hollow so it will disperse less cake. If the wood ones shift, you are in trouble. Then I use a 1/2" dowel thru the entire cake. I also drive like Miss Dasy
There are the sps system that Leah uses. She speaks highly of it and some day I would like to try.

Thansk CakeDiva. I think I'll use the 1/2" through the center.