Posted previously with no responses --- I don't think it is a knowledge issue but could be a non-interest issue perhaps ... so I'll try again since I know many you guys have alot more knowledge and experience than me !!
I want to tile my countertops - granite I think. My thinking was/is that 1/2 Durock with solid steel cross members on top for support would be sufficient as a base. I had not considered using plywood since most people say don't use near the grill.
Seeing different things - pro and con on the internet - for example :
The advantage of tile is that it can be done as a do-it-yourself countertop. The biggest mistake made when using tile for an outdoor countertop is to use plywood for the substrate. Make sure you pick a waterproof board if you are making a tile countertop for your outdoor kitchen. Do not use plywood.
My dilema is that I really don't want to use plywood on the grill island but if I use 3/4 on the other part of the L -- my counter heights won't match unless I build up with 1/2 and 1/4 Durock. And if I do this -- is that a suitable base on the grill side? Or can I just use 1/2" plywood on the non-grill side?
Or ... do I need to use plywood at all ??? That is my question ... any help is much appreciated !!