Hi Everyone!
  I have a very general and basic question.  I have 10” round boards for the 8” cakes.  I have a website for boxes, however the size is 12x12x6. I am not worried about the hieght, but would this be the correct size LxW to purchase?  I don’t want the box to hug the cake and i don’t the want the cake to slide around in the box.
Thanks!

I use 10x10 boxes for 10” cake boards. The edge of the board will go right to the side of the box. If your cake is 8”, you’ll be OK and it won’t hit the side of the box.

If you want to be safe and put a 10” board in a 12” box, get a roll of Rubbermaid waffle-texture shelf liner and cut a small 3” square, and put it under the cake board. This will stop the cake from sliding around in the box.

Thanks for the tip!

those flat little rubber squares and rounds you get as adverstising that open jar lids will work too and they are free.

Great tips, you guys! Thanks!