Hi I am doing my first fondant covered tiered cake, my base is a 10X10 square with a 9 inch round on top. Do I need to put the wooden dowels in the square base to support the top or will it be O.K to just stack them? Thanks for the help.

Always use support when you stack...then it is stress free.

is your 10x10 only 2" high? is your 9" only 2" high?

If your answer is yes to both questions then no support (typically it's only support for only 4" of vertical cake)

If the answer is no to either question then yes you should use a board under the 9" cake and dowels (or other similiar support) under the 9" board.

Thanks everyone for the advice.....I will be supporting the layers!!

Support the tiers, not the layers. The layers are the pieces you stack up to make a tier. A tier is often 4" high and made up of two layers with filling or frosting in the middle.

You need a board for the top tier and a board for the bottom tier. The dowels will act as table legs for the top board, supporting the weight of the upper tier.

Texas Rose you are so right..... I mean I will support the tiers!!!!