Back to Back Trim on Pocket Door

[Steve H]

Hi Guys, thank you very much for the responses to my question on the pocket door. I went with 18mm marine ply and 6mm Jackoboard. I am now prepping for tiling. Because of the build up of the wall, I am thinking about putting 2 pieces of 12mm trim up the edge of the wall. 1 piece to mask the ply and jackoboard and the other to mask the edge of the tiles. I know that will give me an inch of trim, but I am using polished metal trim and it will be near the polished metal shower cubicle, I don't think it will look bad.
But I am sure you guys will know otherwise, if it is just wrong! Is there a problem having 2 pieces of trim in the same slot, I expect it to be quite a thick coat of adhesive with it being in the shower cubicle.
Suggestions, corrections please.

 

[Concrete guy]

Have you offered up the jamb kit yet to see how it fits?

 

[Steve H]

Now then, I hadn't thought of that. Cheers ats tools, I'll have a look in the morning. That's probably exactly what I need to fill that void. Thanks again.