Shower CurbSill

Cultured Marble cultured onyx and Cultured Granite Shower Entrance

Our Cultured Marble Onyx and Granite Thresholds offer a durable, easy to clean alternative to natural stone or tile thresholds. Also ask about matching bench seats and shower caddie's.


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 3/4" thick 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 colors.


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