The Montague MON3580-7 grate top section measures 31" x 12" and is designed to fit compatible commercial range tops. It works by sitting securely over the burner assembly, supporting cookware while allowing heat and flame to pass through the openings for consistent contact with pots and pans. The heavy-duty construction helps retain and distribute heat evenly across the cooking surfac... https://partsfe.ca/mon3580-7-montague-grate-top-section-12