I put mine on the same size cake board as the tier, then on the Wilton cakes (I use the hidden columns)............that's my 2 cents. thems_my_kids Posted 8 Jun 2007, 6:00pm. post #4 of 5. To tier, I put the cake on teh exact same size wrapped cake board.8 inch cake = 8 inch board.Then I use a wilton plate because it has the feet for the columns. I wouldn't put a cake directly on a wilton plate because I wouldn't want my plate scratched during teh slicing process.ost #5 of 5. I use cardboard covered in clear plastic. It's actually the what you'd wrap a basket in, or something, comes in a roll like wrapping paper. But I make my circle the exact same size as the cake so it doesnt stick out and is covered by a border.