I need to make a square tiered cake 12",8" & 4"
I do not have a 12 inch square pan
if I used four 6" cakes and pieced it together would it hold the wieght of the 8" & 4"?
Thanks for any info
Gram

with a proper support system it should as the support system carries the weight to the board, not the cake.

Are you going to be putting fondant over it? And will it be one layer of cake for each tier? Or two layers of cake?

The more layers of cake, the less sturdy it's going to be. And I'm afraid that it's going to be unstable. How far is the drive?

I would be careful with this...If it isn't pieced together perfectly you might get sagging and bulging because of gaps between the cakes. You can get a 12 inch cake pan at walmart for less than $10. Then you wouldn't have to be as concerned.

Yes, you can piece together 4 6-inch squares. Make sure you trim all the sides that will be touching so they are perfectly smooth and can fit snugly next to each other.

No, it won't hold the weight of the 8 and 4, but neither would a solid 12-inch square. Your dowels (or whatever support system) bear the weight of the upper tiers, not the cake below.

the icing will be butter cream
not sure about 1 or 2 layers for each tier
needs to feed 50 to 60 people
I am planning on dowel rods for support
the drive is about 30 minutes

Thnaks gram

a 12 inch pan is not that expensive

If 2-layers each, a 4/8/12 square will serve 8/32/72 = 112
If 1--layer each, a 4/8/12 will serve 4/16/36 = 56

The bottom tier of the present cake in my photos is a 20 in square. I used 8- 10 inch square cakes. It worked fine. I didn't have any problems except that it was extremely heavy.