I will be making a stacked cake on Friday. The cakes will be 10 and 7 inches. I have used two cardboard's hot glued together before but I find it difficult to cover the cardboard edge with butter cream. Not a problems when I use fondant. Can I use a single cardboard or do I really need two together? There is no border around the bases of the cake to help hide the cardboard's just smoothed icing. Thanks.
One should be fine. If you are worried, slip 4-5 bubble straws in to support the small layer.
A lot of people keep mentioning bubble straws what are they? Are they better than dowels?
I will be making a stacked cake on Friday. The cakes will be 10 and 7 inches. I have used two cardboard's hot glued together before but I find it difficult to cover the cardboard edge with butter cream. Not a problems when I use fondant. Can I use a single cardboard or do I really need two together? There is no border around the bases of the cake to help hide the cardboard's just smoothed icing. Thanks.
If you're talking about cardboard cake circles for the base of the bottom tier that supports the whole cake then yes you need two or three of them glued together to be sturdy enough to properly support your cake. If you mean two "glued together" to use between layers then I certainly wouldn't do that. That would leave too large of a "gap" between layers.
You only need one cardboard circle between your tiers and straws or dowels to help support the top tier. Are you planning on using just the cardboard circles between tiers for support? 
I've never heard of using the cardboard circles only between tiers. I've always seen them used along with dowels/straws.
I use the same size cake circle as the cake that it's sitting on. By the time I've iced my cake the cardboard is no longer visible even before adding the border. I'm trying to figure out exactly how you're planning on constructing your cake.
Yes! Bubble straws are 1/2 in wide straws and the cake actually will go inside of the straws and not displace the cake, like with dowels.
Where can you get bubble straws?
[quote="Creativebakes"]
Where can you get bubble straws?
I can't get them without ordering them. I order milkshake straws which are very similar but cheaper for me because I order through a friend of mine that owns a catering business.
Most of the tiered cakes in my photo's have McDonald's straws for supports. 
I had ran out of straws and couldn't find any locally. I noticed that the McDonald straws were very similar to the ones that I use so I ask the manager if she would sell me a few of them. She gave me a handful. Actually probably two handfuls. I continued to use them even after I received my order. So...if you can't find milkshake straws try your local McDonald's. 
I never use wooden dowels anymore. Straws are so much easier to cut and I've never had any problem with the structure of my cakes being sturdy enough.
Yes! Bubble straws are 1/2 in wide straws and the cake actually will go inside of the straws and not displace the cake, like with dowels.
Where can you get bubble straws?
Ebay has them pretty cheap. I get mind at an Asian food store. I think someone also said Burger King along with McDonald's has big straws too.
Have you ever seen tapioca tea on an asian menu? That's what they are used for. Any large asian market will have them.
After all the cakes are stacked using the bubble straws do you then run a dowel
Through to connect all the layers?
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