I am wanting to make a 3 tiered cake. Do I put each tier on a thin cake board and then put them one on top of each other?

Hi and Welcome to CC, shal1234

Decoding CC acronyms:

http://www.cakecentral.com/cake-decorating-ftopict-2926.html

A thin cake board can support a small cake or tier, but there's no way cake boards alone can support the weight of multiple tiers without imploding... (Ditto for the cake tiers above being supported by the cake tiers below.)

Here's a detailed (3 page) how-to on baking, assembling and decorating your 1st b/c or fondant stacked/tiered/layer cake:

http://www.cakecentral.com/cake-decorating-ftopict-605188-.html

The above thread has almost goof-proof cake, b/c and fondant recipes. In addition, there are charts which give batter, filling, fondant and b/c requirements by cake size.

Wilton help links are included and illustrate how to level, torte and assemble cake tiers. (Info is also provided on the use of flower nails to replace heating cores, using bake even strips, and making your own pan grease.

In addition, there's help for covering a cake w/fondant or smoothing b/c.

Almost all the standard cake support systems are explained and illustrated. (Also look for Leahs SPS system info.) And a lot more!

(From your other post.)
Making wired decorations, and use of wire in cake/s:

http://www.cakecentral.com/cake-decorating-ftopict-612928-.html

http://www.cakecentral.com/cake-decorating-ftopict-614122-.html

http://www.cakecentral.com/cake-decorating-ftopict-613832-.html

http://www.cakecentral.com/cake-decorating-ftopict-613779-.html

http://www.cakecentral.com/cake-decorating-ftopict-610638-.html

http://www.cakecentral.com/cake-decorating-ftopict-605201-.html

HTH

Edited to fix broken link.

Thank you for all that advice!
I can't however seem to connect to the 3 page detailed thread. It's sounds brilliant! Any ideas, it says this doesn't exist?

thanks for the help! I cant seem to connect to the 3 page "how to". It says it doesn't exist. Any ideas?

That's odd, because I corrected the broken link at 6:32 am and just rechecked it now and it's working.

My post in that thread, takes 3 pages if printed out... But using the embedded links would yield pages more of information.

HTH

Thank you so much! I found it! Brilliant and so comprehensive....
Sorry about repeating the above request, still getting used to the site!