Custom length available up to 72 inches Thickness: 5/8" Easy integration with Schluter KERDI-BOARD Shower Curbs and Tile Redi Shower Pan System. Highly Durable and Long-Lasting. Non-porous, do not requiere sealing. Perfect for Use in Bathroom, Shower Curbs, Backsplash, Jambs, Window Sill and floor Transitions. Visit our new page by clicking our brand name "Threshold.Shop", for a smoother shopping experience. Enhance your living space with our customizable Calacatta engineered marble threshold. This premium product offers the perfect blend of durability and elegance, designed to fit your exact measurements. Crafted with precision, this personalized threshold adds a touch of sophistication to any room. Elevate your home décor with our customizable Calacatta engineered marble threshold, tailored to perfection."