Professional Cross Wire Cooling Rack Half Sheet Pan Grate - 16-1/2" x 12" Drip Screen 2 Pack Dimensions of grate are 12" x 16.5" Fits a Standard 1/2 Sheet Pan (13" x 18") Used by many inside a sheet pan to allow excess juices to drip or allow the bottom of food to crisp up. Also excellent for use as a cooling rack.