Dekor’s composite stone and granite sinks have a durable, extremely hard, non-porous surface that with stand heat over 450 degrees Fahrenheit, and resists chips, scratches, and stains. They are easy to clean with non-abrasive cleaning products. Dekor’s composite sinks feature a cross linked fiberglass backing that provides additional strength and stability to the sink, helps maintain water temperature, and acts as a sound barrier for food disposers. Convenient dual mount installation allows the sink to be drop-in mounted, also known as self-rimming, or under mounted. Drop-in installation is easy and no clips are required. Installation templates are provided on our website in .PDF and .DXT formats. The cut out dimensions for sink installation are 31-inches long by 20-inches wide with 1-inch radius corners. Dekor sinks are backed by a limited lifetime warranty. Made in the USA.