Prep a cabinet before cleating it

You have my permission, but what do you mean by cleat ?

French cleat it.

I would like to French cleat it, but am not sure if all I need to do is provide a solid plywood back to the cabinet and then to apply a French cleat.

I presume your hanging this on the wall ? Applying a solid back is a plus. I would add a perimeter strip on the back to conceal the cleat at the top however..

Mount an angled cleat to the wall, install the complimentary cleat
to your project, and you can slide it to your desired location.

Welcome to LumberJocks Papuz!

Im out , I think you all are talking about two differant things.

Here’s a side view Papuz.

I think I have my answers, but I have also learned to use full terminology and to provide specific details.
I can see how things can get confusing. I will be French cleating this cabinet to the wall about 10 in off the floor.

The perimter strip is a great idea., that was another concern. I may place a granite counter top on top of the existing surface top so this will work.

I really want to thank you for your help as this gives me a go ahead for my project….:)

U da man Papuz!