Home Depot Universal 19-in. Adjustable Porcelain Cooking Grate made of porcelain-coated steel, which extends from 10 to 14 inches in length Brand new - Never Used - Open box • Width: Fixed at 19 inches. • Depth (Length): Adjustable from 10 inches up to 14 inches deep to fit various grill sizes. • Material: Porcelain-coated steel wire.