Shower Curb Thresholds for Sale

Cultured Marble and Cultured Granite Shower Entrance

Our Cultured Marble and Granite Thresholds offer a durable, easy to clean alternative to natural stone or tile thresholds.


Thresholds provide an efficient seal for shower doors and a smooth, straight ledge for any glass application! Available in a variety of sizes and finishes, they install quickly with little or no cutting, and offer a waterproof, seamless finish that is designed to last. These Cultured Marble Thresholds can be used with our Kirb Perfect kits.

Installation instructions.pdf


Shower Curbsill Threshold

All Thresholds are 6 1/4" wide and available in 24", 30", 36", 48" and 60" lengths.

an't decide on which color will work for you? Order a free 2" x 6" sample in any of our colours.