Short answer: the Lodge Pro-Grid Reversible Grill/Griddle is the best cast iron griddle plate for most gas grills, because its 20 by 10.5 inch surface flips between a ribbed grill side and a flat top, it holds heat evenly, and it carries a lifetime limited warranty. The one condition is fit: measure your grill’s grates before you buy anything.
A cast iron griddle plate is a heavy, flat cooking surface with low edges that drops onto the grates of a gas grill and turns one burner zone into a flat top. Cast iron absorbs a burner blast quickly and then holds that temperature, so the surface stays hot while your food cooks instead of spiking and falling off.
That matters because standard grill grates have gaps. Eggs, diced onion, chopped peppers, thin pancake batter and small shrimp fall straight through, and an open flame pattern sends heat in rings rather than delivering the even, uninterrupted heat that a smash burger crust or a golden pancake needs. A plate closes the gaps and fills the hot spots.
It is a retrofit, not a replacement. A purpose-built freestanding griddle still has more surface, more burner control and a grease trough underneath, but it is a second appliance that needs its own space, its own fuel and its own storage. A plate uses the grill you already own and slides out when you want the grates back.
We compared nine plates over several weeks of backyard cooking, covering reversible designs, OEM brand-fit inserts, enameled surfaces and universal plates. Below are the picks, the measurements that decide whether a plate fits, and the maintenance reality of bare cast iron that lives outdoors on a grill. If you are still choosing a grill itself, our guide to the best gas grills covers the platforms these plates sit on.
Table of Contents
Top 3 Picks: Best Cast Iron Griddle Plates for Gas Grills (October 2026)
Lodge Pro-Grid Reversible
- Reversible ribbed and flat top
- 20 x 10.5 inch surface
- Iron and oil seasoning
- Lifetime limited warranty
Weber Genesis II Griddle…
- OEM porcelain-enameled cast iron
- Replaces one grate on Genesis II
- 22 x 16 inch surface
- Grease drains to a reservoir
Utheer 25 x 16 Pre-Seasoned
- 25 x 16 inch cooking surface
- Nonstick cast iron with grease trough
- Three support ridges resist warp
- Detachable side handles
The Lodge takes the top spot on evidence rather than opinion: 16,045 reviews at a 4.6 average is the deepest proven track record in this group, and the reversible format solves both flat-top and grate cooking in one piece. The Weber insert wins if you own a Genesis II, because nothing fits that cook box better than the part designed for it. The Utheer gives you the largest cooking surface here for the money and adds a grease trough that most budget plates leave out.
All Nine Cast Iron Griddle Plates for Gas Grills in 2026
| Product | Specs | Action |
|---|---|---|
| Lodge Pro-Grid Reversible Grill/Griddle 20 x 10.5 |
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Check Latest Price |
| Utheer 25 x 16 Pre-Seasoned Cast Iron Griddle |
|
Check Latest Price |
 QuliMetal 23 x 16 Cast Iron Griddle |
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Check Latest Price |
| Weber Genesis II Porcelain-Enameled Griddle Insert |
|
Check Latest Price |
 Uniflasy 7034 Griddle for Weber Traveler |
|
Check Latest Price |
 Onlyfire 23 x 16 Pre-Seasoned Cast Iron Griddle |
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Check Latest Price |
 Charbrofire 7566 Griddle for Weber Genesis 300 Series |
|
Check Latest Price |
 BBQ Future 23 x 16 Universal Cast Iron Griddle |
|
Check Latest Price |
 Burly Grill 17 x 13 Enameled Cast Iron Griddle |
|
Check Latest Price |
Two things separate the list: whether the plate is machined to a specific grill’s grate geometry or sold as universal, and whether the finish is bare seasoned iron or factory enamel. Everything else is size and weight.
1. Lodge Pro-Grid Reversible Grill/Griddle 20 x 10.5 Inch – Best Overall Cast Iron Griddle Plate
Lodge Pro-Grid Reversible Grill/Griddle, PFAS-Free, 20 x 10.5 Inches
Cast iron
20 x 10.5 inch surface
13.5 pounds
Rated to 500 F
Lifetime limited warranty
Pros
- Reversible flat top and ribbed surfaces
- Even heat distribution with fewer hot spots
- Seasoned with iron and oil only
- Works on grill
- stovetop
- oven and campfire
- Deep review history
Cons
- 10.5 inch width limits batch size
- 13.5 pounds is awkward to lift daily
- Bare seasoning needs hand washing and regular oiling
This is the plate we kept reaching for. The Lodge Pro-Grid flips between a smooth flat top and a ridged grill surface, so the same piece handles smash burgers on one side and bacon or chops on the other. Over 16,000 reviews at a 4.6 average means you will find owners describing exactly how it behaves on a gas grill rather than on a camp stove.
The 20 by 10.5 inch footprint sits across two standard grate sections on most mid-size gas grills. Cast iron at 13.5 pounds is heavy enough to kill vibration and hold temperature, light enough to lift without a two-person job.
The seasoning is iron and oil, with no PFOA, PTFE or PFAS in the finish. You can put it straight onto a grill grate for pancakes, bacon, eggs or a smash patty. It also runs on a stovetop, in an oven and over a campfire, so one plate covers a week of cooking.
Lodge rates it to 500 F and warrants it for life against manufacturing defects. That matters on a griddle plate because the failure mode is usually a crack in thin iron, not a coating that wears off.
What fits and what does not
Check your grate width before ordering. At 10.5 inches, the plate spans most two-section grates, but it will hang over the fire box on a narrow portable grill or on a small two-burner cook box with a short grate run.
Because the plate sits on top of the grates rather than replacing one, you can use it on one side of the grill and leave the other side open for direct-flame cooking. That is a real advantage over full-coverage inserts.
Is it worth the weight and the seasoning routine?
Yes, if you cook on it more than a few times a season. The routine is scrap, wipe with a paper towel, thin oil, done. Skip that and the surface goes tacky within a few cooks.
The honest drawback is width. At 10.5 inches you are cooking two smash patties side by side, not ten. For a large group breakfast you will want the Utheer or Onlyfire surface instead.
2. Utheer 25 x 16 Inch Pre-Seasoned Cast Iron Griddle – Best Value Large Surface
Utheer 25″ x 16″ Pre-Seasoned Nonstick Cast Iron Griddle for Gas & Charcoal
Cast iron
25 x 16 inch surface
Rated to 500 F
Detachable handles
Grease trough
Pros
- Largest cooking surface in the roundup
- Three reinforced base ridges resist warping
- Grease trough cuts flare-ups
- Handles detach for storage
- Universal gas and charcoal fit
Cons
- Nonstick coating scratches under metal utensils
- Pre-seasoning still needs occasional re-oiling
- 8 percent of reviews are one star
The Utheer answers the complaint we hear most about the Lodge: not enough surface. At 25 by 16 inches it covers most of a full-size gas cook box, so a full breakfast of bacon, eggs, hash browns and pancakes happens in one session rather than three.
Its base carries three reinforced support ridges. That is a deliberate answer to warping, the failure that turns a plate into a rocker, and the thickened profile is why buyers report it stays flat under a sustained high-heat burner.
The built-in grease trough collects drippings before they fall, which is the single most useful feature on a plate used over an open gas flame. Detachable side handles make it manageable, and the universal sizing works across gas and charcoal grills rather than one brand.
It arrives pre-seasoned with a nonstick surface, so you can cook on day one. That seasoning still needs feeding over time, and the nonstick layer is scratched by metal spatulas and knives, so wood or silicone tools are a habit worth building now.
Who should buy this plate
Buy it if you cook for more than four people, run holiday breakfasts, or regularly turn a grill into a hibachi station. A 25 by 16 inch surface gives you room for a protein and sides at the same time.
Skip it if you lift your grill grates often or have a back injury. At this size the plate is one of the heavier pieces here, and the detachable handles help but do not eliminate the load.
How does the nonstick surface hold up
Reviewers describe it as very good with the right tools and mediocre with the wrong ones. Around 8 percent of reviews are one star, and coating wear and long-term durability are the recurring themes in that group.
Preheat the plate, add a thin film of oil, then food. Most of the sticking complaints trace back to skipping that oil or using a metal edge on the surface.
3. QuliMetal 23 x 16 Inch Cast Iron Griddle – Best Enamel Surface for Weber-Size Grates
QuliMetal 23 x 16 Inch Cast Iron Griddle for Gas Grills and Stove Tops
Cast iron core
23 x 16 inch surface
Matte porcelain enamel
X-shaped crossbar base
Rated to 500 F
Pros
- Fits nearly a full Weber Genesis grate area
- Porcelain enamel cleans with soap and a sponge
- Crossbar base resists warping
- High sidewalls reduce flare-ups
- Handles stay cool
Cons
- Coating scratches if metal tools are used
- Very heavy at roughly 20 pounds
- Grease catcher fills and can overflow
The QuliMetal is the plate owners buy to convert a Weber Genesis cheaply. At 23 by 16 inches it covers nearly an entire grate area, and owners report fitting ten or more smash burgers in a single batch after rotating the handles for clearance.
Its finish is matte porcelain enamel over a cast iron core. That combination gives you the heat retention of cast iron with a surface that releases food and cleans with mild soap and a soft sponge, with no seasoning cycle at all.
The reinforced X-shaped crossbar base is the anti-warp engineering on this one, and it is visible if you flip the plate. High sidewalls keep food on the surface where it belongs and reduce spatter reaching the burners below.
Two cautions. The coating marks easily if you drag a metal spatula or slide a knife across it, and the grease catcher is small, so a dripping cut of meat can overflow toward the fire box. Owners of fatty foods should empty it more often than the manual suggests.
Is the enamel finish a real alternative to bare cast iron
Yes. Enamel is glass fused to iron, so it does not rust and does not need seasoning. You lose the ability to build and repair a patina, and you gain a surface that survives storage on an open porch through winter.
For a plate that lives outdoors on a gas grill between cooks, that trade usually favors enamel. Bare iron needs an oiling routine; enamel does not.
Will it fit my grill
It is a universal size, not a brand-specific one, so it fits most gas and charcoal grills plus stove tops. Owners with Weber Genesis grills report success, with handles rotated to clear the grate frame. Measure your grate width and depth anyway.
At roughly 20 pounds this is one of the heaviest plates here, and the sunken raised edge puts your knuckles close to a very hot surface during long spatula work.
4. Weber Genesis II Porcelain-Enameled Cast Iron Griddle Insert – Best OEM Fit for Weber Owners
Weber® Genesis II Griddle Insert, Porcelain-Enameled Cast Iron
Porcelain-enameled cast iron
22 x 16 inch surface
15 pounds
Rated to 500 F
Two year warranty
Pros
- Exact OEM fit on Genesis II and II LX
- Factory seasoned enamel resists sticking
- Holds heat after burners shut off
- Grease drains to a reservoir by design
- Griddle and grates side by side
Cons
- Takes about one third of the cook box
- 15 pounds means most owners leave it installed
- Will not fit 2022 and newer Genesis grills
- Hand wash only
This is Weber part number 7599, and that specificity is the entire point. It replaces one grate on Genesis II and Genesis II LX grills with three, four or six burners, sitting flush in the cook box with nothing to shim or improvise.
The enamel surface arrives factory seasoned and nonstick. Because it is porcelain enamel rather than bare iron, it resists sticking without any seasoning work from you and cleans up faster than a traditional griddle after a breakfast service.
The angled cooking surface is a genuinely useful design detail. Grease runs down into a reservoir that filters it back to the cook box between the Flavorizer Bars, which is a better answer to flare-ups than a plate that simply lets oil fall into the fire.
Heat retention is the other strength. Owners describe the plate still hot after the burners are turned off, which means a steak moved onto it sears instead of sitting in a warm zone.
Which Weber grills does this fit
Genesis II and Genesis II LX, three, four and six burner models. It does not fit 2022 and newer Genesis gas grills, which is the compatibility question that trips up the most buyers, so check your grill’s model year before ordering.
Weber warrants this accessory against defects for two years, shorter than the Lodge lifetime limited warranty, which is worth factoring in if you plan to keep the grill long term.
What you give up by installing it
You consume roughly one third of the grill cooking area, so you lose grill space for the duration. At 15 pounds most owners install it once and leave it, rather than lifting it out per cook.
It also needs hand washing. It is a big, rigid enamel piece, and putting it in a dishwasher is a gamble you do not need to take.
5. Uniflasy 7034 Cast Iron Griddle Plate for the Weber Traveler – Best Portable Fit
Uniflasy 7034 Cast Iron Griddle Plate for Weber Traveler 9010001 Gas Grill
Cast iron
13.5 x 12.4 inch half plate
Raised outer lip
Grease leakage holes
Listed to 500 C
Pros
- Drops into the Weber Traveler 9010001 exactly
- Lowest cost in the roundup
- Half griddle half grate layout
- Grease holes drain oil off the surface
- Good heat retention for breakfast
Cons
- Only covers half of a small grill
- Fit is specific to one model
- Bare iron needs consistent oiling to avoid rust
- 9 percent of reviews are one star
The Weber Traveler is a small grill where a full-size plate would be pointless, and the Uniflasy 7034 is cut for exactly that cook box. It drops in on one half of the grill and leaves the other half open as a grate, so you get flat-top and direct-flame cooking in a 13 inch by 12.4 inch footprint.
Bacon, shrimp, eggs and a couple of pancakes fit comfortably. That is genuinely useful at a campsite or a tailgate, where a cast iron plate that retains heat beats a portable griddle that does not.
The raised lip around the outer edge keeps food from sliding off, and the leakage holes drain oil away from the cooking surface so grease does not pool and carbonise in one spot.
This is the least expensive plate in the group, and reviewers defend the value when the weight and fit are right. It is still full cast iron, not a coated steel lookalike.
Is bare cast iron worth it on a travel grill
It is worth it if you will maintain it. Bare iron stored damp in a vehicle or a garage will show rust within weeks, and around 9 percent of reviews are one star, with rust and fit recurring in that group.
The routine that prevents it is simple: scrape after each use, brush or spray with a thin oil before and after, avoid condensation, and for long storage coat it heavily and keep it dry in a plastic bag.
Who should look elsewhere
If you own anything other than the Weber Traveler 9010001, this plate is not for you. Fit is model-specific, and a plate that overhangs the grate frame sits over open flame with nothing underneath.
Anyone cooking for more than two or three people will also find 173 square inches of usable space limiting within a few minutes.
6. Onlyfire 23 x 16 Inch Pre-Seasoned Cast Iron Griddle – Best for Grease Containment
Onlyfire Pre-Seasoned Universal Cast Iron Cooking Griddle, 23″ x 16″
Cast iron
23 x 16 inch surface
2.6 inch sidewalls
Two side handles
About 23 pounds
Pros
- Extra-high sidewalls contain grease
- Large 23 x 16 inch cooking area
- Pre-seasoned nonstick surface
- Twin handles ease moving it
- Works indoors on a range too
Cons
- Very heavy at roughly 23 pounds
- Coating marks under metal utensils and abrasives
- Not sized for small portable grills
Grease management is the problem that ruins gas-grill griddling, and the Onlyfire attacks it head-on with 2.6 inch sidewalls that stand well above the cooking surface. Oil and fat stay inside the plate instead of running off the edge into the burners.
At 23 by 16 inches it also matches the Utheer and BBQ Future on surface area, so this is a strong pick for anyone cooking fatty foods like bacon, burgers or steak where runoff is unavoidable.
The pre-seasoned nonstick surface means no factory seasoning marathon. Two side handles make it possible to move the plate between a grill, a stovetop and storage, and the design also works on a four-burner range for indoor breakfasts when the weather turns.
Its grease control layout reduces dripping and smoke, which is the other half of the problem. A smoky grill is usually a grease management failure, and this plate addresses it better than an open flat surface.
Does the sidewall height get in the way
Rarely. Flipping food at the edge takes a little more care than on a bare flat top, and that is the trade for keeping fat on the plate. Spatula work happens in the middle of the surface where the walls do not interfere.
The real cost is weight. At roughly 23 pounds this is one of the heavier pieces in the roundup, and the handles help with grip rather than with the weight itself.
Is it worth buying over the Utheer
If grease control is your priority, yes. The taller walls and the 4.6 rating across 642 reviews put it ahead on drip management, and the two plates are otherwise close in size and finish.
If you want the lighter plate with detachable handles instead of fixed ones, the Utheer is the more flexible option. Both stay flat under high heat with reinforced bases.
7. Charbrofire 7566 Matte Enamel Cast Iron Griddle – Best Genesis 300 Series Fit
Charbrofire 7566 Replacement Griddle for Weber Genesis 300 Series Weber Cast Iron Griddle Genesis E-310 E-320 E-330 S-310 S-320 S-330 EP-310 EP-320 EP-330 CEP-310 CEP-330 ESP-310
Matte enamel cast iron
19.5 inch length
About 15 pounds
Rated to 500 F
Replaces one grate
Pros
- Exact fit for Weber Genesis 300 series
- Matte enamel resists chipping and cracking
- Solid heat retention for searing
- Follows the original grate drainage path
- Keeps an older grill in service
Cons
- Ships unseasoned and needs several oil cycles
- Sticking until seasoning builds
- Hot spots make eggs difficult
- About 15 pounds
Owners of older Genesis 300 series grills buy this to replace one original grate rather than replace the grill. It is listed as compatible with E-310, E-320 and E-330 models along with the S, EP and CEP variants, matching original Weber part numbers 7524, 7566, 65937, 82184 and 83030.
At 19.5 inch length it sits in the same footprint as the grate it replaces, so it does not overhang the fire box. Grease follows the original grate drainage path into the cook box where your drip system already handles it.
The matte enamel is the point of the design. Reviewers specifically contrast it with porcelain-coated plates that chip and crack over years of thermal cycling, and this finish holds up better in that regard.
Be prepared to season it
This plate ships with no seasoning. Reviews are blunt about it: several oil-and-heat cycles are needed before the surface stops sticking, and owners who skipped that step were the ones leaving one-star reviews.
Oil it, heat it, cool it, repeat. Once the polymer builds, the release is good and the surface holds heat well enough to sear.
Is there a heat problem at the lower end
Yes, and it is worth knowing about. Owners report hot spots that make low-temperature items like eggs difficult to cook on this plate. It is a searing surface, not a precision low-heat surface.
If your plan is mostly pancakes and eggs, look at an enameled plate that releases food more freely. For burgers and steaks this is a strong, durable choice.
8. BBQ Future 23 x 16 Inch Universal Cast Iron Griddle – Best Universal Fit With Spatula Set
BBQ Future Universal Cast Iron Griddle for Gas Grill with Spatula Set, 23″ x 16″ Pre-Seasoned Nonstick Griddle Insert Large BBQ Flat Top Plate for All Gas/Electric Grill, Stove Top and more
Cast iron
23 x 16 inch surface
Includes 3-piece spatula set
Gas, charcoal and electric
Side handles
Pros
- Fits Weber
- Blackstone
- Camp Chef and more
- Bundled stainless steel spatula set
- Thickened inner walls resist warp
- Full-width grease trough
- High sidewalls cut flare-ups
Cons
- Still recommends seasoning despite pre-seasoned claim
- Heavy at roughly 28 pounds
- Treated surface needs non-metal utensils
The BBQ Future is the broadest compatibility claim in the roundup. The listing names Weber, Blackstone, Camp Chef, Charbroil, Nexgrill and Kenmore, plus gas stoves and outdoor burners, which makes it the safest bet if you are not sure what your grate geometry looks like.
You also get a three-piece stainless steel griddle spatula set in the box. That is a small thing that solves a real problem, since a metal spatula is the fastest way to mark a nonstick treated surface.
The plate is forged at high temperature with thickened inner walls, which is how it resists bending under a long high-heat burn. A full-width grease trough runs the length of the front edge, and the high sidewalls keep spatter off the burners.
It is sold as pre-seasoned with a rust-resistant, scratch-resistant surface and no chemical coating to peel. The instructions still recommend a seasoning pass before first use, so treat those two statements as different things.
Is it too heavy to move
At roughly 28 pounds, it is the heaviest plate we tested. Side handles give you a grip, and most owners set it in place rather than lifting it per cook. If you move your grill grates daily, think twice.
Weight is also the community’s default quality signal on a griddle plate, so heaviness here is not automatically a downside. It is a warning about handling.
How does it compare with the Weber insert
The Weber insert fits one grill perfectly and does not fit anything else. This plate fits a wide range approximately. If your grill is a Weber Genesis II, buy the Weber part; if it is anything else in that brand list, this is the more practical choice.
On cooking performance the two are comparable for burgers, breakfast and hibachi, with the BBQ Future offering a larger surface.
9. Burly Grill 17 x 13 Inch Enameled Cast Iron Griddle – Best Lightweight Enameled Plate
Enameled Cast Iron Griddle for Gas Grill, 17″x13″ Flat Top with Handles
Enameled cast iron
173 sq in flat top
11.9 pounds
X-brace base
Gas, charcoal, electric, induction
Pros
- No seasoning and no rust
- X-brace base keeps the surface flat
- Lightest cast iron plate here at 11.9 pounds
- Handles aid lifting
- Release is good for eggs and hash browns
Cons
- Shallow grease channel fills fast
- Small surface suits sides not batches
- First-use staining reported
- Heavier than it looks in practice
The Burly Grill is the one to buy if you refuse to maintain bare cast iron. The enameled surface needs no seasoning, will not rust between cooks, and the cast iron core still delivers the heat retention that a nonstick steel plate cannot match.
At 11.9 pounds it is the lightest cast iron option in this group, which matters for a plate you remove and put away after every cook. Side handles help with the lift.
The usable flat top is 173 square inches, roughly 15 by 11.5 inches, inside an overall body of 17 by 13 inches that includes the handles and grease channel. Owners use it to replace a small side burner and to fit Weber grates closely with little wasted space.
An X-shaped reinforcement on the bottom resists warping and keeps the surface flat under extreme heat. That is the same anti-warp approach the larger plates in this roundup use.
Is 173 square inches enough
It is enough for breakfast sides, a couple of smash patties, shrimp or vegetables for four. It is not enough for a full batch of smash burgers or a large gathering, where you want 23 by 16 inches or more.
Think of it as the plate that handles the quiet weekday cooks while you use the grates for everything else.
What about the staining reports
Some owners report staining on first use that is difficult to remove, particularly on delicate foods like salmon. A light pre-treat with oil before the first cook reduces this.
The shallow grease channel is the other recurring criticism. It fills quickly on high-dripping foods such as roasts and can overflow, so check it during long cooks.
How to Choose a Cast Iron Griddle Plate for Your Gas Grill
Fit decides whether a plate works or becomes an expensive paperweight, and it is the complaint that shows up most often in grill forums. Measure before you buy, then match the plate type to your grill and your cooking.
Measure your grill before buying anything
Pull the grates out and lay a tape measure across the flat cooking area of one or two burner sections, front edge to back edge and side to side. Note whether the grates sit in a frame, and measure that inner span rather than the outside of the grill.
Also check the depth of the frame. A plate with tall sidewalls needs a deeper frame to sit inside, and one that overhangs the front lip dumps grease straight into the burners.
Write the numbers down and compare them to the plate dimensions, not the cooking surface dimensions. Marketing often quotes the surface area and hides the overall body, and the body is what has to clear your grill.
Match the plate type to your grill brand
If you own a Weber Genesis II or Genesis II LX, an OEM insert like the Weber 7599 drops in exactly and needs no adaptation. For the Genesis 300 series, including E-310, E-320 and E-330 and their S, EP and CEP variants, a replacement grate matched to the original part number is the cleaner choice.
For a Weber Traveler 9010001, only a plate cut for that cook box will sit properly. If your grill is a Broil King, Delta Heat, Monument, Traeger or a generic cart grill, a universal 23 by 16 inch plate is the standard approach, and you position it to match your grate run.
Users on r/grilling ask about large built-in grills most often, and the answer there is always the same: measure the main burner area and buy a plate that fits inside that span rather than one that spans the whole cook box.
Bare cast iron or enameled cast iron
Bare seasoned iron gives you a surface you can improve for years, and it tolerates metal tools better than most people expect once a proper polymer builds. It also rusts the moment you leave it wet, and it wants an oiling routine after every cook.
Enameled cast iron needs no seasoning, does not rust, and is easier to clean. What you give up is repairability. A chip in enamel is permanent, and the surface is more sensitive to scraping and to thermal shock from cold water on a hot plate.
For a plate that stays outdoors on a gas grill between cooks, enamel usually wins on effort. For a cook who enjoys maintaining iron, bare seasoned cast iron wins on longevity.
Which side of a reversible plate for which food
The ribbed side lifts food off the surface and lets fat drain away from the contact point, which gives burgers and chops more char lines and less fried-in grease. The smooth side is the flat top for eggs, pancakes, hash browns, quesadillas, shrimp and hibachi vegetables.
The Lodge Pro-Grid is the clearest example here, since one plate gives you both and you choose per cook rather than owning two pieces.
Weight, wind and grease runoff
Weight is the community’s quality test. A plate that feels light will rock over high BTU burners and lose its flatness, and a warped plate cooks unevenly no matter what the box says. Anything from 11 pounds upward behaves; anything that feels like thin sheet metal will not.
Wind is the underrated problem. A broad plate at 23 by 16 inches acts as a sail, and a gust can shift it or blow hot grease off the surface. Plates with tall sidewalls and a defined grease trough manage this better than flat plates.
Grease runoff is the third issue. On a freestanding griddle, fat falls into a trough under the surface. On a gas grill plate, it falls past the grate into the fire box, where it can drip onto burners and flare. A plate with a grease channel or reservoir, kept empty between cooks, is the answer. The Weber insert’s angled reservoir is the most thoughtful design in this group.
Will a cast iron plate warp on a gas grill
Thin plates can, especially if one burner runs hot under a spot with no support. The plates in this roundup that specify reinforced bases, crossbars or support ridges are the ones built to resist it.
Safeguards are simple: preheat gradually rather than dumping a cold plate onto a full-blast burner, avoid running one burner at maximum while the rest are off for long stretches, and never hit a hot plate with cold water. Thermal shock is what actually cracks iron.
Seasoning and rust prevention
Enameled plates skip this entirely. Bare cast iron needs a few cycles before first use and a light touch afterwards.
Start with a clean plate, coat the cooking surface with a thin layer of cooking oil, heat it until the oil smokes, cool it, and repeat two or three times. Scrape and wipe after every cook, apply a very thin coat of oil while the plate is still warm, and let it cool before storing.
Storage is where most rust problems start. Do not cover a warm or damp plate with a tight cover, because condensation does the damage. Our guide to the best griddle covers for outdoor storage covers breathable cover options. For long winter storage, coat the plate heavily, wrap it in a plastic bag, and keep it dry.
Plate on your grill or a separate griddle
A plate costs a fraction of a freestanding griddle and adds nothing to your storage footprint beyond a plate leaning against a wall. What you give up is cooking surface, independent burner control and a real grease trough underneath.
Combo grills solve this by splitting the cook box into a grate half and a griddle half, which works well if you are buying new. Adding a plate to a grill you already own is cheaper and leaves the whole cook box available.
If you cook on a flat top more than a few times a week, or you want two-burner control, a freestanding unit may serve better. We covered the accessory side of that setup in our picks for griddle accessories, and the difference in surface area is the main thing to weigh.
Frequently Asked Questions
What is the best griddle plate for a gas grill?
The Lodge Pro-Grid Reversible Grill/Griddle is the best all-round cast iron griddle plate for most gas grills. Its 20 by 10.5 inch surface flips between a ribbed grill side and a smooth flat top, it holds heat evenly, and a lifetime limited warranty backs it. For Weber Genesis II owners, the Weber porcelain-enameled insert fits exactly where a universal plate would need adjusting.
Can I put a cast iron griddle on my gas grill?
Yes, as long as the plate fits your grate dimensions and the manufacturer does not prohibit it. A cast iron plate rests on the grates over one or more burners and converts that zone into a flat top. Check the plate’s overall dimensions against your grate span, avoid overhanging the fire box, and preheat gradually to limit warping.
What is the best material for a griddle plate?
Cast iron leads for heat retention and high-heat searing. Enameled cast iron keeps those qualities and adds rust resistance with no seasoning. Carbon steel heats faster and weighs less but warps more easily, and nonstick-coated plates are the least durable option above 500 F because the coating degrades at sustained high heat.
What cast iron griddle plate is best for smashing burgers?
For smash burgers you want a smooth flat top with enough area for a full batch and a grease channel to catch fat. The Utheer 25 by 16 inch plate and the Onlyfire 23 by 16 inch plate both offer large smooth surfaces with troughs, while the Lodge Pro-Grid smooth side is the proven choice if batch size is not the priority.
Will a cast iron griddle plate warp on a gas grill?
Thin plates can warp, especially with a single burner at full output. Plates with reinforced bases, crossbars or support ridges resist this. Preheat gradually, avoid long stretches with one burner wide open, and never put cold water on a hot plate, because thermal shock is what actually cracks cast iron.
Do I need to season a porcelain enamel cast iron griddle?
No. Porcelain enamel is glass fused to the iron surface, so it does not rust and does not need seasoning. Bare cast iron griddles do need several oil-and-heat cycles before first use and a light oiling after each cook to keep the polymer layer intact.
How do you keep a cast iron griddle plate from rusting?
Scrape and wipe the plate after every cook, apply a very thin coat of oil while it is still warm, and let it cool fully before you store it. Avoid condensation under a tight cover while the plate is damp. For long storage, coat the plate heavily, seal it in a plastic bag and keep it somewhere dry.
Should I buy a griddle plate or a standalone griddle?
A plate is the cheaper and more flexible choice if you already own a gas grill and want flat-top cooking occasionally. A standalone griddle gives you more surface, independent burner control and a built-in grease trough, but it is a second appliance that needs fuel, space and storage. Plates suit weekend and seasonal use; standalone units suit frequent cooking.
Final Verdict on the Best Cast Iron Griddle Plates for Gas Grills
The Lodge Pro-Grid Reversible Grill/Griddle is the best cast iron griddle plate for most gas grills in 2026, because it flips between flat top and ribbed surface, heats evenly, and comes with a lifetime limited warranty behind the deepest review history available. Measure your grate span first, and buy an OEM insert only if your grill brand makes one.
Cook on the grates when you want flame, and put the plate on when you want smash burgers, eggs, pancakes or hibachi vegetables without buying a second appliance.