This is a Pre-sloped 12" x 36" Extension Tray that comes in a kit of (4). This Product is designed to extend the current pre-sloped shower tray sizes and create custom shower base sizes for easy installation.
You can order this product here: trugarddirect....
All of our Shower Tray's are trimmable to any desired size.
Make sure to check out our waterproofing membrane to ensure a watertight shower!
Website: trugarddirect.com
Facebook: / trugarddirect