Stop by a tile shop and pick up a flat back corner shelf unit about 20.
How to install a ceramic corner shelf in a shower.
This diy shower shelf system makes installing stone shelve.
To install the shelf you ll apply adhesive foam and caulk to 2 sides of the shelf and attach it to your shower tiles.
Installation is the big con for ceramic shelves for two reasons.
How to install a corner shower shelf in minutes with this easy to use after the tile shelf system.
If you have a tiled shower you ll need a ceramic corner shelf which you can find at your local hardware store as well as double sided adhesive foam tape and silicone caulk.
But you can add a corner shelf or another soap dish on existing tile.