Upgrade your shower with Trimslate double threshold shower bases. Featuring two add-on thresholds that accommodate shower doors effortlessly. Threshold adjusts the maximum depth and width up to 2.5-in without any trimming of base. Crafted from solid sheet-molded compound material with sturdy structural ribs, it ensures durability and stability. Field trimmable for customization, it installs easily atop thinset mortar. The lightly textured slate floor is slip-resistant and easy to clean. Transolid FZSDT7940C Features: Transolid FZSDT7940C Specifications: