Grates Cast Iron Fireplace Grates Our cast iron grates hold wood logs for proper ventilation, maximizing the burn of your solid fuels. XB SIZES AVAILABLE: 24’’, 30’’, 36’’ HL SIZES AVAILABLE: 23’’, 27’’ Cast Iron Grates XBAvailable Sizes: 24″, 30″, 36″ Cast Iron Grates HLAvailable Sizes: 23″ & 27″