I'm about ready to install kitchen countertops. The plan is to put ceramic tile on these in a couple of weeks. (The tiles are large heavy-duty porcelain tiles, about (maybe) 3/8" thick so not extremely thick.)

A few questions first, if you please:

1. Can I just attach 3/4" exterior plywood directly to the cabinetry--or is some sort of "shimming" (for added height) recommended? (I'd rather avoid TOO much height but if it's recommended I can do it.)

2. Is it sufficient to use attach the underlayment using just the corner braces provided by the cabinet manufacturer--or is additional support needed?

3. I was planning to use 1/2" Hardiebacker on the plywood. I believe this is a new product (I've only seen 1/4" in the past) but if it's stronger and lasts longer, this has obvious appeal. Any experience (pros and cons) with this product?

4. In your collective experience--anything else I should know going in?

Thanks in advance!
-k2 in CO.

[This message has been edited by k2 (edited November 15, 2003).]