Best Fire Pit Grates and Cooking Grates
Fire pit grates fall into two distinct categories that serve different purposes and should not be confused with each other. A firewood grate, also called a log grate or fire grate, sits inside the fire pit bowl and elevates the firewood above the ash bed to improve combustion airflow. A cooking grate sits over the fire pit bowl and provides a stable cooking surface for grilling food over the open fire. Both types are worth understanding before purchasing, and using the right type for the intended purpose makes a meaningful practical difference.
Part 1: Firewood Grates
What a Firewood Grate Does
A firewood grate elevates the log stack above the bottom of the fire pit bowl, creating an air gap between the base of the wood and the ash bed beneath it. This air gap serves two functions: it allows combustion air to flow freely beneath the burning logs, which produces a more complete and efficient burn, and it separates the active fire from accumulated ash, which would otherwise insulate the base of the logs and slow combustion.
A fire built directly on the floor of the fire pit bowl burns less efficiently than one built over a grate because ash accumulates quickly around the base of the logs and restricts airflow. A grate resolves this by lifting the fuel load into the zone of maximum airflow, producing a hotter, cleaner fire that uses less wood to achieve the same heat output.
Firewood grates also make ash removal easier. Ash falls through the grate bars and collects in the base of the bowl beneath the grate, separate from any unburned log remnants above it. After the fire has fully cooled, the grate can be lifted out and the ash bed cleaned without disturbing the remaining fuel.
What to Look For in a Firewood Grate
Bar diameter and spacing: The horizontal bars of a firewood grate must be heavy enough to support a full load of split hardwood logs without bowing or deforming under the combined weight of the fuel and the heat of the fire. A bar diameter of 3/4 inch or above in solid steel is the practical minimum for a grate that will support standard 16 to 18-inch split logs. Spacing between bars of 3 to 4 inches allows adequate airflow and lets smaller pieces of wood and kindling settle into the grate rather than falling through to the ash below.
Grate height: A firewood grate should elevate the fuel load 3 to 5 inches above the fire pit floor. This height provides adequate clearance for airflow beneath the fire while keeping the fuel close enough to the floor of the bowl that the fire’s heat reflects off the bowl walls effectively.
Size relative to the fire pit bowl: A firewood grate should fit inside the bowl with enough clearance at the sides to allow ash to fall to the floor below without being blocked by the grate sitting tight against the bowl wall. For a 36-inch diameter fire pit bowl, a grate of 28 to 30 inches diameter provides practical working clearance. Measure the inner diameter of your fire pit bowl before purchasing.
Material and finish: Heavy-gauge steel is the standard material for firewood grates. Some grates are finished with a high-temperature paint coating; others are bare steel that develops a rust patina over time. Both are functional, a high-temperature paint finish slows initial rusting but eventually burns off under repeated fire exposure, and the underlying steel then behaves the same as an uncoated grate. Cast iron firewood grates are the most durable option and retain their shape through more thermal cycles than steel, at the cost of greater weight.
Part 2: Cooking Grates for Fire Pits
Fire Pit Cooking: What Makes It Work
Cooking over a fire pit is a genuinely enjoyable extension of fire pit use that goes well beyond the novelty of toasting marshmallows. A wood fire produces excellent cooking heat with a character that gas or charcoal grills cannot replicate, the combination of direct radiant heat from the fire and the subtle aromatic smoke from the burning hardwood contributes something distinctive to the flavor of grilled food.
The challenge with fire pit cooking compared to a purpose-built grill is heat management. A fire pit fire is larger and less controllable than a grill fire, and the cooking surface height above the flames determines how much heat the food receives. A cooking grate that allows height adjustment, either through a swing-arm system, a telescoping mechanism, or a simple multi-height bracket, gives you the control needed to cook effectively rather than just char food.
Cooking Grate Types
Swing-arm cooking grates attach to the side of the fire pit bowl via a clamp or pin bracket and swing the cooking surface laterally over the fire, then back away from it. This design is one of the most practical for fire pit cooking because it allows you to move food on and off the heat quickly without lifting the entire grate away from the fire. Swing-arm grates are available in various cooking surface sizes, typically 14 to 22 inches in diameter, and in single and double-arm configurations.
The quality variables to assess in a swing-arm design are the bracket attachment strength (it must hold the grate securely at full extension over the fire with a loaded cooking surface), the smoothness of the pivot action, and the cooking surface material. A swing-arm with a loose or wobbly bracket is a dropping hazard that is not appropriate for a fire feature.
Adjustable-height cooking grates sit across the rim of the fire pit bowl on crossbar supports and can be raised or lowered by repositioning the support brackets at different heights, or by using a telescoping support post design. The height adjustment range determines cooking control, a grate that can be positioned anywhere from 4 to 16 inches above the fire allows you to dial in the right heat for different foods and different fire intensities.
Simple crossbar or tripod grates rest on the rim of the fire pit bowl at a fixed height. These are the most affordable and the least adjustable, the only heat control is through managing the fire size itself. For occasional use with simple food like sausages and skewered items, a simple crossbar grate at a fixed height can work well. For more involved cooking, an adjustable design is worth the additional cost.
Rotating spit attachments extend fire pit cooking into rotisserie territory, with a motorized or hand-cranked spit that rotates meat or poultry over the fire. These attachments require a fire pit with adequate rim stability to support the spit brackets and a fire that burns down to a consistent coal bed rather than active flame. Whole chickens, small joints, and kebab-style preparations work well on a fire pit spit.
Cooking Surface Materials
The cooking surface material determines heat transfer characteristics, maintenance requirements, and food release.
Carbon steel cooking grates heat quickly, transfer heat efficiently, and develop a natural non-stick seasoning with regular use and proper care. Carbon steel rusts when left wet or unseasoned, drying the grate after washing and applying a thin coat of cooking oil before storage keeps the surface in good condition.
Cast iron cooking grates retain heat exceptionally well and produce an excellent sear on proteins. Cast iron heats more slowly than carbon steel but maintains temperature more consistently when food is added, which is useful when cooking thicker items. Like carbon steel, cast iron requires drying and seasoning to prevent rust.
Stainless steel cooking grates are the most weather-resistant option and require the least maintenance. They do not rust and can be cleaned easily without the seasoning protocol required for carbon steel or cast iron. The trade-off is that stainless steel does not develop the non-stick seasoning surface that carbon steel and cast iron acquire with use, and some grades of stainless used in lower-cost grates are prone to surface discoloration under high heat.
Grate Size and Fire Pit Compatibility
A cooking grate sized for a 36-inch fire pit bowl should span the full bowl diameter comfortably, typically a cooking surface of 24 to 28 inches positioned above the center of the fire. Larger grates are available for larger fire pit bowls, and smaller options suit compact fire pits and chimineas that have suitable firebox geometry for cooking use.
Confirm that any cooking grate you purchase is explicitly compatible with your specific fire pit design. Crossbar grates sized for one bowl diameter may not seat securely on a differently proportioned rim, and a cooking grate that can shift or fall during use creates a genuine burn hazard.
Combining a Firewood Grate and a Cooking Grate
A firewood grate inside the bowl and a cooking grate above the rim can be used together effectively, the firewood grate improves combustion and the cooking grate captures the heat output. The combined setup does raise the cooking surface slightly higher above the fire than a cooking grate alone, which means the cooking temperature at the grate surface is somewhat lower. For searing-temperature applications, burning a cooking fire without a firewood grate and letting the fuel burn down to a coal bed provides the most concentrated heat at the cooking surface.
Cooking Safely Over a Fire Pit
Cooking over an open fire pit requires the same basic precautions as using any live fire: long-handled cooking tools (tongs, spatulas, and forks with handles of at least 18 inches), heat-resistant gloves for adjusting grates and moving hot equipment, and a clear zone around the fire pit that children and pets cannot enter unattended during cooking.
Never cook on a propane fire pit burner not designed for cooking use, propane fire pit burners are not engineered for the grease and food residue that cooking produces, and most propane fire pit warranties are voided by cooking use over the propane burner itself. A cooking grate used over a wood fire in a fire pit that is not actively connected to a gas supply is the safe and correct approach.
For full fire pit safety guidelines covering fuel, surface protection, and operating procedure, the fire pit safety tips for homeowners guide covers the complete picture applicable to cooking use alongside general fire pit operation.
Part of the Fuel and Accessories hub. See also: Best Fire Pit Covers and Spark Guards | Best Firewood for Fire Pits | Fire Pit Safety Tips