While your Gateway Drum Smoker comes standard with one cooking grate, you may also purchase additional grates to maximize space and cook on multiple levels. This grate fits all 55-gallon Gateway Drum Smoker models. The 21 1/2-inch stainless steel cooking grate provides 462 square inches of cooking space inside the barrel, and can be mounted in three different cooking levels using grate pegs welded inside the drum, or you can add up to 2 more cooking grates for a maximum capacity of 1,386 square inches (available for purchase separately).