HI!!

I am thinking about using a cake spacer for the first time ever. I assume that I can just use white foam. I'm wondering though can it be covered in Buttercream? Having never used one I'm not sure of how well buttercream covers.

Also, how do I dowel it? should I not use the cardboard cake rounds so that I can dowel from the top tier through to the bottom?

My Plan is to only use 1 spacer. I have a 6 inch round, 8 inch square, 10 inch round. I was going to use a spacer between the 10 and 8 inch. And I'm not sure if I should use a round or a square spacer.

What do you think? Any suggestions would be appreciated.

Styrofoam cake dummies can be covered in buttercream.

Doweling a dummy isn't necessary, just make sure the dummy is on its own board so that it isn't pierced by the dowels below. All cakes should also be on their own cake boards.

An 8 inch square cake will not fit on a 10 inch round... it needs to go on a 12 inch round so that it doesn't overhang.
Right angle measurements:
4" 5.66
5" 7.07
6" 8.49
7" 9.9
8" 11.31
9" 12.73
10" 14.14
11" 15.56
12" 16.97
13" 18.38
14" 19.8
15" 21.21
16" 22.63
17" 24.04
18" 25.46

Also, I would use a square styrofoam spacer under a square cake as it will provide more support to the corners than a round spacer would.

This is what I was wondering too. Thank you CWR41 Would you center dowel the whole cake if you gonna transport the cake stacked?

Oh thank you! I think I'll just do all rounds with a spacer. I haven't baked the top two tiers yet. But thanks so much for all the info!!!

Ok so one more question. If I have 10, 8, 6 inch cake rounds and I want to put a spacer between the top two tiers...what size spacer should I use? would a 4 inch give enough stability? I assume it needs to be smaller than the top tier.

Oh I see. That make sense. Thank you