Today was sunny, so I was able to continue working on my patio dining table.
I attached the 3/4" PT plywood using 2" decking screws.
Next, the 1/4" hardibacker concrete board using thinset mortar and 1-1/4" concrete board screws.
Then, laid my tiles using grey polymer mortar. yay!
And....done! just waiting for another day to allow the mortar to dry then I will grout the tile top and some finishing touches.
That is one big dining table!