Nantucket Sinks offers this 17.75" x 11.75" cutting board specifically designed to fit our Steppe3918 sinks in collaboration with Studio Dearborn. food safe, this cutting board will sit comfortably on the countertop right over the sink. Underside of cutting board has a grooved edge to help keep the cutting board in place over the sink. Made of sapele wood which is know for its rich color,tight grain and durability. Natural variations.