Hi, I'm new to Cake Central so I apologise if this question has been asked many times before. I'm planning on making my first two tiered, fondant covered cake (rectangle on the bottom and round on the top) for my son's upcoming birthday. The cake does not need to travel anywhere. I'm wondering if I need to have a cake board under the top tier? And is there any need for me to use dowelling for support? Thanks

Welcome tamara22blue - Yes and Yes. The cake board and dowels or straws will hold the weight of the top tier. If you don't use some sort of support the weight of the top will "squash" the bottom tier. Good Luck and post a picture when you are done!!!!

You should use both for every 4" of cake height.