I'll be doing a two tier cake next month (bottom tier 12" and top tier 10", both 4" high).  Are the Wilton cake bases strong enough to support the weight?  I have a couple at home and I don't want to buy another brand if these will work okay.  Thanks

Are these the thick boards? 

I did a 12" and 8" cake on one in August and a 12", 10", 6" just last weekend and the thick 14 inch board held up nicely :) 

I'm not sure what the wilton cake bases are....but I only use a 1/2" drum for my tiered cakes.    For 3 tiers I glue 2 together for a 1" drum.  HTH. 

AAbsolutely, I did a 8-10-12 earlier this year and stacked it on a regular Wilton drum without any issues, and it was a delivered cake.

It'll be fine.  I go up to three tier on those boards.  Any more than that, and it's decorated plywood!

APersonally, I find those Wilton drums to be quite flimsy. I would cut my own from half inch foam core before using one of those.

for your two tiered cake it should be fine. I find them to be ridiculously expensive. I prefer to put together my own, too. 

Sure, those Wilton cake drums/bases are very sturdy.  It'll hold that 2 tier cake with no problems.