Weber # 65054 (26-1/2" x 5-1/4") Raised Warming Rack Genesis 310 Replaces part 81323 and 62749 Weber # 65054 Raised Warming Rack for 3 Burner Weber Genesis 300 series grills. This raised warming rack is 3" higher than the flat version so you can cook food underneath it. Replaces Weber Part # 81323 and # 62749 Overall measurement (Lower part that rests on the cook box) is 26-1/2" left to right and 5-1/4" front to back. Warming surface Measures 23-1/2" x 5-1/4" Please visit Weber's website to ensure you order the correct parts for your specific grill. It is best to look up by serial #. The following link will also help you find the alpha numeric number. http://help.weber.com/schematics/#serial-number