A marble shower curb, also called asaddle, is a long, solid piece of stone used to cap the step at the entrance of a shower, creating a clean, durable threshold that helps contain water and finishes the opening with a polished look. At Castelli Marble, our curbs are stocked in 6"×50"×3/4" & 6"×72"×3/4", and these versatile pieces can also be used as shower niche shelves or as door saddles, providing a sturdy, elevated surface where tile or flooring terminates cleanly. Where tile or flooring terminates cleanly. This protects exposed tile edges, prevents chipping, and completes the transition with a refined, professional look.

A marble 10" quarter-round shower shelf is a curved, corner-mounted ledge designed to add functional storage inside a shower while maintaining a clean, architectural look. Its rounded front edge softens the profile, making it both visually refined and comfortable to use. Castelli Marble’s 10" quarter-round shelves provide a sturdy, water-resistant surface for holding bottles, soaps, and accessories, and they integrate seamlessly with any tile installation for a built-in, high-end finish.

A marble quarter-round shower seat is a curved, corner-mounted bench designed to add comfort, storage, and a built-in architectural feel to any shower. Castelli Marble stocks 20" quarter-round seats in 20" × 1.25" (with Crystal White and Black Granite available in 0.75"), offering sturdy, water-resistant seating options that integrate seamlessly with marble tile installations. For larger layouts or full-width seating, our rectangular bench seats come in 13" × 50" × 1.25"and 18" × 50" × 1.25", with Crystal White and Black Granite also stocked in 0.75". These solid marble seats provide a durable, spa-like surface that elevates both the look and functionality of any shower.