Designed to securely lock into your Elkay sink or countertop opening providing confidence the board will not shift around during use Manufactured from the finest hardwoods grown in a sustainable manner Properly sized according to your sink bowl Built to provide years of daily use Fits Undermount Bowl Size 14-1 2 x 18-1 2 and 18 x 18-1 2Height: 1 Length: 19-3 4 Material: Solid Maple Weight: 4 Width: 12