Shower Thresholds

A shower threshold keeps water inside the shower and finishes the top of the curb cleanly and durably. You'll find two families here: Fusion finishing thresholds in polished quartz or engineered stone, 12 mm thick, 1-1/2" to 5" wide and 36", 48" or 60" long, and Schluter KERDI-BOARD-SC prefabricated curbs, which form the curb structure and integrate with the KERDI waterproofing system.

To choose a finishing threshold, measure the width of the top of your curb once covered and the length of the opening, and plan a slight slope toward the inside of the shower. For a coordinated look, Fusion also offers jambs, shelves and benches in the same colours.

Building a new shower or redoing one from scratch? Explore our shower kits, including the tray, drain, waterproofing and the KERDI-BOARD-SC prefabricated curb in the right size, ready to order in one click. The finishing threshold is chosen separately, from this collection.