Cooking Grill Features: Porcelain On Steel (1 Req'd) Dimensions: 12 1/4in x 18 1/8in Front to Back by Left to Right of the actual cooking surface is measured. Stand-offs and stubs are not included in the general measurements. Should there be an extension or unique “stub” of the center brace on a cooking grill or rock grate, the measurement of the extension is not included in measurement.