Build your own concrete shower pan -- it isn't nearly as hard as you might think!
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DIY Walk-In Shower: Step 3- Prep For Tile - DIYdiva
How to Build a Shower Pan - Step by Step: The Family Handyman
how to diy a concrete shower floor
Building a house
DIY Bathroom Renovation: How to Build a Custom Tiled Shower Pan Apartment Therapy Tutorials
This illustration shows the basics of how to build a shower pan.
Bathroom remodel ideas
DIY Bathroom Renovation: How to Build a Custom Tiled Shower Pan — Apartment Therapy Tutorials
Build your own shower pan to accommodate any space:
How to Build a Shower Pan (Shower Floor) Before installing the shower pan liner, it is important to build a "pre-sloped" mortar (mud) bed so that the liner when installed, will direct all moisture toward the drain's "weep holes".