Upgrade any of our standard 18-gauge stainless steel sinks to 16 gauge. Thicker is better! This affordable and easy upgrade is a no-nonsense approach to your kitchens most abused appliance in your home. GranCo’s premium sink offerings are made of T304 premium stainless steel and has a brushed finish. Our 16-gauge undermount sinks design eliminates the rim between the sink and the countertop for easier cleanup. It is stain, rust, and oxidation resistant while it’s finish protects the sink from everyday wear and tear and provides a durable surface that withstands scrubbing.