The Island Countertops by Federal Brace are a great way to give your kitchen a more professional style. Comes in both Stainless Steel and Copper finishes and are the perfect solution for island prep surfaces or sterile work centers. Each island countertop is 1-1/2" thick with finished square edges. Cabinet grade plywood substrate is included for installing your countertop. The stainless steel countertop is 16 gauge and has a 304 brushed finish. The copper alloy in the copper countertops has 99.7% copper material. The Copper Kitchen Countertop will require regular cleaning to prevent patina over time. The Island Countertops are designed in a standard size or can be ordered in custom sizes to match your kitchen requirements. Custom and cutout sizing is available, call us at 1.800.667.8721.