Tiling on WBP Plywood?

[GrahamWilliams]

Hi, I was hoping that somebody would have a suggestion for the following:

I am installing a new shower cubicle and have removed all the old tiles which has exposed the concrete wall. The wall is not the smoothest surface so I want to create a smooth surface to tile on.

I was considering putting WBP Plywood on the wall and then tiling on this. Would this be ok? I want to avoid using a thick material if possible.

Thanks

 

[lancenotalot]

Plasterboard it then tank the board with a tanking kit or you could use some aqua panel.

 

[gcol]

The wall is not the smoothest surface so I want to create a smooth surface to tile on.

It doesn't need (or want) to be smooth, just flat.