It Takes 27.1 Inches to Fit a 25-Inch Best Griddle for Gas Grill

1. Uniflasy Griddle for Gas Grill, 25 x 16 Inch Cast Iron Flat Top Plate — Best Overall

The only listing on the page that tells you how much grill a griddle needs, not just how big it is.

Key Specifications

Why We Recommend It

This is the listing that answers the question every other one dodges. Its first bullet is headed “IMPORTANT FIT CHECK”, and it does the arithmetic for you: the flat surface is 25 by 16 inches, the handles stick out about 1.05 inches at each end, so the plate is about 27.1 inches long overall. “Your grill must provide at least 27.1″ × 16″ of clear usable space at grate level. If your grill has only 25″ of clear inside length, this griddle may not fit.” No other universal plate here tells you how far its handles reach. That one sentence is worth more than any burner count on the page.

It is honest about burners, too. The listing recommends a 5-burner or larger grill, then immediately qualifies it: “Burner count alone does not guarantee fit—always measure the inside cooking area before ordering.” It rules out “curved grill grates, round burner camp stoves or unsupported glass/electric cooktops”. Set that beside the QuliMetal, the same 25 by 16 inches, which claims “90%” of grills, and you see the problem this guide is about. Same plate size, opposite advice. The Uniflasy’s version is the cautious one, and the one that gives you a number to measure against.

The size is the most generous universal surface here. 400 square inches, stated, and the arithmetic checks: 25 times 16 is 400. With the handles, the footprint is about 433.6 square inches by our arithmetic. The Utheer and QuliMetal share the 25 by 16 surface; only the EasiBBQ and, on one of its fields, the Weber Rust-Resistant claim more, and both of those fit named grills only.

The material description contradicts itself. One bullet says “Nonstick-Coated Cast Iron” with an “FDA-tested nonstick coating” and “No seasoning required before first use, unlike traditional cast iron griddles.” The last bullet calls it “Pre-Seasoned Reinforced Flat Top”. A coated surface and a seasoned surface are cared for differently, and the listing does not say which this is. Treat it as coated, the more detailed claim, and ask the seller before using a metal scraper hard on it. Two of the bullets are also duplicated in part, which suggests a listing assembled in a hurry.

What to weigh. It is sold by BBQMall Direct, a third-party seller. It ranks #4 in Griddles and #6,544 overall, second only to the Utheer on this page. The weight field gives about 21.9 pounds, so lifting it hot off a grill is a two-handed job. No warranty is stated. If you have measured 27.1 by 16 inches of clear space, this is the best-documented universal plate you can buy.

Best for: Owners of large gas grills who have measured at least 27.1 by 16 inches of clear space at grate level.

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2. Charbroil Performance Series Griddle Insert, Porcelain-Coated Cast Iron — Best Budget

The cheapest plate here, sold by Amazon.com, with a surface claim its own dimensions cannot hold.

Key Specifications

Why We Recommend It

This is the simplest fit on the page. “Sits on Top of Grates: Simply place on top of your gas grill grates for instant versatility without buying another appliance.” It does not replace a grate and does not name a grill. Despite the “Performance Series” in its title, which is also the name of a Charbroil grill range, the bullets never say it is limited to those grills. At 16.61 by 12.28 inches outside, it is small enough to sit on one side of most grills and leave the rest of the grates free, which is how a plate this size is best used.

The area claim does not survive its own spec table. The first bullet promises “a 270 sq. inch 12″ flat-top griddle”. The length and width fields are 16.61 and 12.28 inches. Multiplied, that is about 204 square inches by our arithmetic, for the whole outside of the plate, rims and all. A cooking surface cannot be larger than the object it sits on; 270 is about 32% more than the outside footprint. Either the dimension fields are wrong or the 270 is. The listing does not explain the “12″” either. Plan around the 16.61 by 12.28 inches you can measure for, and treat the cooking area as somewhat less than 204 square inches.

The material is the most care-free here. “Porcelain-coated cast iron provides steady heat and natural nonstick performance, backed by rust-resistant durability.” No seasoning: “Set up in 15 seconds or less with no seasoning or prep required.” And unusually for a coated plate, it claims to be “Built to handle metal spatulas and scrapers without chipping the surface or wearing out.” That is a strong claim for porcelain, and it comes with a 1 Year Limited warranty, which most plates here do not state at all.

What to weigh. It is sold by Amazon.com and ranks #18 in Griddles and #26,919 overall. Of the plates that sit on top of the grates rather than replacing one, it is the only one with a stated warranty. The weight is not stated. If you want a half-grill griddle for eggs and smash burgers without measuring for a full insert, this is the one to start with.

Best for: A first griddle for any gas grill, used on one side of the grates, with no full insert to measure for.

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3. Weber Rust-Resistant Griddle Insert, Model 6787 — Best Model-Specific Fit

Built for named Weber grills and build years, with a maker’s 2 Years warranty and Amazon.com as seller.

Key Specifications

Why We Recommend It

This is the fit statement a measuring tape cannot beat: a list of grills. “This Weber Outdoor Griddle Insert fits Spirit 4-burner gas grills manufactured since 2025, Spirit and Spirit II 3-burner gas grills manufactured from 2016-2024, and Searwood pellet grills.” If your grill is one of those, you do not need to measure anything. You need to know your model and its build year, both of which are on the grill’s data label. If your grill is not on the list, the listing gives you nothing to go on, and you should not assume it fits.

It is designed to fill the cook box, not sit on one side. “Griddle insert was specifically engineered to convert your grill’s entire grilling surface into a full-sized griddle.” That is a different idea from the 17 by 13 inch plates, which leave grates free. With this in place the grill is a flat top. The grease is handled the Weber way: “Effective grease management optimized to integrate into your grill’s existing collection system”, with rimmed edges to keep food and oil on the plate.

The dimensions disagree with each other. The size field says 22.7 by 17.3 by 1.2 inches; the length, width and height fields say 25.6 by 19.9 by 2.8. By our arithmetic, that is about 392.7 square inches on the first set and about 509.4 on the second. The larger set may describe the packaging or the outside of the rims; the listing does not say. For a model-specific insert this matters less, because fit is guaranteed by the model list rather than by inches. But if you want to know your cooking area, the listing gives two answers.

The name says rust-resistant; the bullet says carbon steel. “Durable carbon steel construction of this griddle helps deliver and retain even heat.” Carbon steel is the same family of material as the Hisencn’s, and it is pre-seasoned rather than coated: “pre-seasoned and ready to use right out of the box”. The listing does not explain what makes it rust-resistant beyond that seasoning. Expect to dry and oil it after use like any seasoned steel. It claims a “thick material design that avoids warping”, and weighs 21.8 pounds, close to the Uniflasy’s cast iron.

What to weigh. It is sold by Amazon.com, with a 2 Years warranty, and ranks #9 in Griddles and #17,432 overall. It is the priciest plate on the page. The Arribueno also names Weber Spirit 300 Series 3-burner grills, but it is a plate that sits on the grates; this one fills the cook box and drains into the grill’s own system. On the smaller of its two sizes it gives 392.7 square inches by our arithmetic, less than the 25 by 16 plates. The storage bag is “sold separately”. What the step up buys is a guaranteed fit and a maker’s warranty on a named grill; if you own one of those grills, it is the safest choice here.

Best for: Owners of a Weber Spirit or Spirit II 3-burner from 2016–2024, a Spirit 4-burner from 2025, or a Searwood.

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4. Utheer 25 x 16 Pre-Seasoned Nonstick Cast Iron Griddle for Gas and Charcoal — Most Popular

The best-selling plate on the page, sold as universal, with no handle length and spec fields that read one inch.

Key Specifications

Why We Recommend It

This is the plate most buyers on this page choose. It ranks #3 in Griddles and #6,295 overall, the best rank of the ten, a fraction ahead of the Uniflasy. It is the same 25 by 16 inch surface, and it says far less about fit. “Its universal design fits most grills, making it the perfect companion for camping, tailgating, family gatherings, and backyard BBQs.” No burner count, no grill named, no clear-space figure.

The detachable handles are the useful detail, and the missing one. The listing lists “Detachable Handles: Convenient side handles make it easy to lift, carry, or store.” Detachable matters for fit: if the plate’s 25 inches go in but the handles do not, you may be able to cook with them off. But the listing never says how far the handles reach, or whether the plate is meant to be used without them. Compare the Uniflasy, which tells you its handles add about 2.1 inches in total. Here you will have to measure the plate when it arrives, before it goes on the grill.

The spec table is no help. The length, width and height fields all read 1.0 inches, which are plainly placeholders. The size field reads “25″ x 2.6″ x 16″”, which suggests a plate 2.6 inches high including its rim, the same height as the QuliMetal and Hisencn. No weight is given. For a cast iron plate of 400 square inches by our arithmetic, that is a real omission: you will be lifting it off a hot grill.

What to weigh. It is sold by Utheer Direct. No warranty is stated. If it is the plate you want, measure the inside of your grill at grate level and assume you need more than 25 inches; the Uniflasy, at the same surface size, says 27.1. If you can live with the handles off, the detachable design gives you a little more room to work with.

Best for: A large-grill owner who wants the most-bought 25 by 16 plate and will measure it, handles off and on, before first use.

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5. QuliMetal 25 x 16 Inch NanoCeramic Cast Iron Griddle for Gas Grills — Highest Stated Heat Limit

The same 25 by 16 inches as the Uniflasy, sold as fitting 90% of grills where the Uniflasy asks for five burners.

Key Specifications

Why We Recommend It

This listing makes the boldest fit claim on the page. “Measuring 25″x16″, this griddle top for gas grill is engineered for universal compatibility—pre-tested to fit Weber Genesis, Charbroil, Nexgrill, and 90% of gas/charcoal grills on the market.” The Uniflasy, the same 25 by 16 inches, recommends a 5-burner or larger grill and says a grill with 25 inches of clear length may not take it. Both cannot be a safe guide to your grill. The QuliMetal gives no handle length and no clear-space figure, and does not say which Genesis or Charbroil models were tested. Read “90%” as marketing and measure.

The size claim is relative to nothing. “20% Larger Surface: Cook for a Crowd in One Go – Bigger than standard griddles, it fits 8 burgers + 6 eggs + 3 sausages at once.” No standard is named. Three other plates on this page share its exact 25 by 16 inch surface, so against them it is not larger at all. The food count is the more useful number: it tells you the seller’s idea of a full plate.

It is one of only two listings with a heat limit. “Food-grade, PFOA/PFAS-free coating stays safe even at 550°F (hot enough for searing steaks).” The EasiBBQ is the other, at 280°C, about 536°F by our arithmetic. The other eight plates give no ceiling. A gas grill on full with the lid down can run hot, and a coated plate has a coating to protect, so a stated limit is useful information. Keep an eye on the grill’s thermometer when the lid is closed.

What to weigh. It is sold by QuliMetal Direct and ranks #10 in Griddles and #17,881 overall. No weight and no warranty stated. If you want a coated 25 by 16 plate with a printed heat ceiling, this is the one; just do not let the 90% stand in for a tape measure.

Best for: A large-grill owner who wants a coated 25 by 16 plate with a stated heat ceiling, and has measured for it.

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6. Arribueno 23 x 16 Ceramic Coated Griddle for Gas Grill, Universal and Nonstick — Most Grills Named

Two inches shorter than the 25-inch plates, and the only universal listing that names grills by series.

Key Specifications

Why We Recommend It

This is the universal plate that comes closest to a model list. “Measuring 23″×16″, this large flat top griddle is designed to fit most 3/4-burner gas grills, including Weber Spirit I & II 300 Series 3 Burner Grills, Weber Genesis I & II 300 Series 3 Burner Grills, Charbroil Performance and Commercial Series 4-Burner Grills, Nexgrill 3/4-Burner Grills, and Dyna-Glo 4-Burner models.” Series names are not model numbers, and the listing still says “Please measure your grill or stovetop to ensure proper fit before purchase”. But it is far more specific than “most grills”.

Two inches make the difference. At 23 by 16 inches it is the one large universal plate sized below 25 inches. If the Uniflasy is right that a 25 by 16 plate needs about 27.1 inches with handles, a 23-inch plate with similar handles would need roughly 25, and its handles are “detachable”, so you may be able to take them off to cook. The listing does not state the handle length, so measure; but this is the plate to look at if your grill came up just short for the 25-inch ones. By our arithmetic it gives 368 square inches, 32 fewer than the 25 by 16 plates.

It names the same grills as two dedicated inserts. Weber’s own Rust-Resistant insert fits Spirit and Spirit II 3-burner grills from 2016 to 2024. The Arribueno names Weber Spirit I and II 300 Series 3-burner grills too, as a universal plate rather than a dedicated insert. The trade is that the Weber fills the cook box and routes grease into the grill’s own system by design, with a 2 Years warranty; the Arribueno is a plate on top of the grates, with no warranty stated.

The material is steel, not cast iron. The title says “Ceramic Coated”; the bullet says “thick, nonstick-coated steel, delivering superior durability and resistance to bending or warping under high heat”. It positions the ceramic coat against Teflon: “Unlike Teflon-coated alternatives, this grill griddle uses a healthier ceramic coating, ensuring superior heat resistance without peeling or rusting.” No heat limit is given to back up “superior heat resistance”. Steel will be lighter than cast iron of the same size, but no weight is stated.

What to weigh. It is sold by Mastore. Its 368 square inches match its stated dimensions, which the Charbroil’s area claim does not. It is the lowest-ranked plate here, #85 in Griddles and #84,095 overall, so few buyers have chosen it. If you own one of the grills it names and want a large plate without a dedicated insert, it is the sensible alternative to the Weber.

Best for: Owners of the 3- and 4-burner grills it names who want a large coated plate without paying for a dedicated insert.

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7. EasiBBQ Full-Size Griddle Insert for Weber Genesis 300 Series, Replaces 7524 Grate — Largest Stated Surface

A grate replacement for older Weber Genesis 300 grills, with the largest surface here and the strictest heat rules.

Key Specifications

Why We Recommend It

This is an insert in the strict sense: it replaces your grates. “Replacement for Weber Genesis 300 Series Grill Grate or Cast Iron Griddle. Interchangeable use for grate 7566, 7524, 83030, 82184, 65937.” It is sold for “Weber Genesis 300 series grill (model years 2007-2016)”, and the listing then prints dozens of Weber model numbers across three bullets. If your Genesis 300 is in that window, find the model number on its data label and look for it in the list; that is a better fit check than any tape measure.

It is the largest surface on the page, on one reading. The size field says 25 by 19.4 by 3 inches, about 485 square inches by our arithmetic. The dimension fields say 19.5 by 25.8 by 2.0, about 503.1. The two sets are close, unlike the Weber Rust-Resistant’s, and either way this is more cooking surface than any universal plate here. Its weight field reads about 24.3 pounds, the heaviest stated on the page.

The heat rules are the strictest here, and they matter on a gas grill. “For optimal cooking, the temperature should not exceed 280°C. It must not be heated dry—never heat it empty or without food/oil.” 280°C is about 536°F, our arithmetic, a little below the QuliMetal’s 550°F. The second instruction is the harder one to live with: most people preheat a grill empty with the lid down. With this insert, oil it before you light, keep the lid open or watch the thermometer, and do not leave it running bare. The listing does not explain why, but it is the only one here to forbid an empty preheat.

The material is barely described. The package is a “Full-Size Coating Insert Flat Top Grill Griddle” with “excellent thermal conductivity”. It does not say whether the base is cast iron, steel or aluminium, or what the coating is. The 280°C ceiling and the no-dry-heat rule suggest a coating that needs protecting, which is consistent with a nonstick finish, but that is our reading, not the listing’s.

What to weigh. It is sold by EasiBBQ and ranks #19 in Griddles and #27,010 overall. No warranty stated. It is a third-party part; if you own a 2007–2016 Genesis 300, it is the only plate here built for your exact cook box. If you do not, skip it.

Best for: Owners of a 2007–2016 Weber Genesis 300 series grill who want to swap the grates for a full-size flat top.

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8. Weber Genesis II Griddle Insert, Porcelain-Enameled Cast Iron, Model 7599 — Best Half-Grill Insert

Weber’s own cast iron insert for Genesis II grills, replacing one grate and draining into the grill’s own system.

Key Specifications

Why We Recommend It

This is a part, not a plate. “COMPATIBLE GRILLS: Replaces 1 grate on any of the Genesis II or II LX 3, 4, & 6 burner grills.” You lift out one cooking grate and drop this in, so half or less of the grill becomes a griddle and the rest stays a grill. And Weber is unusually direct about what it does not fit: “DOES NOT FIT: 2022 Genesis Gas Grills”. That one line is more useful than any “universal” on the page, because it tells you a near-identical name is not enough.

The grease system is the best-integrated here. “Angled cooking surface drains grease into reservoir which then filters it to the cook box between the Flavorizer Bars.” The plate is built to send fat where the grill already expects it. Plates sitting on top of the grates, with a trough at one edge, can only collect fat or tip it somewhere; this one is designed for a specific grill’s drainage path.

The material is the classic one. “Porcelain-Enameled Cast Iron for superior heat retention and distribution while preventing sticking.” Porcelain enamel needs no seasoning, but it is not a surface for hard scraping, and the care line is simply “Hand wash to keep clean”. At 15.0 pounds it is lighter than the full-grill inserts, because it covers less of the grill.

The size fields do not agree. The size field reads 22 by 16 by 3 inches, about 352 square inches by our arithmetic. The other fields read 18.9 long, 13.2 high and 2.1 wide, which looks like the same plate measured as 18.9 by 13.2 by 2.1 inches with the labels shuffled, or about 249.5 square inches. For a one-grate insert, the smaller set is the more plausible description of the cooking surface, but the listing does not settle it. As with every model-specific insert, fit is decided by the model list, not the inches.

What to weigh. It is sold by Amazon.com, with a two-year warranty against defects. It ranks #84 in Griddles and #83,130 overall, near the bottom of this page, which is what you would expect of a part that fits one grill family. For older Genesis 300 grills, the EasiBBQ insert is the equivalent. If you own a Genesis II or II LX made before 2022 and want half a griddle and half a grill, this is the plate made for the job.

Best for: Owners of a pre-2022 Weber Genesis II or II LX who want a griddle on one side and grates on the other.

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9. Hisencn 17 x 13 Carbon Steel Griddle for Gas Grill and Stove Top — Best Uncoated Plate

Bare, pre-seasoned carbon steel with no synthetic coating, sized to share a grill with its own grates.

Key Specifications

Why We Recommend It

This is the only universal plate here with no coating at all. “The pre-seasoned surface helps reduce sticking and develops a better natural cooking layer with use. No PFOA, PTFE, or synthetic coating.” Bare carbon steel behaves like a wok or a cast iron pan: it gets better as you cook on it and it rusts if you leave it wet. No coating means no coating to chip, no heat ceiling to respect and no worry about a metal scraper. It also means you oil it after every clean. For more plates in this material, see our carbon steel griddle guide.

The fit claim is wide and honest about its limits. “Compatible with many Weber, Blackstone, Char-Broil, Nexgrill, Kenmore, and other 3–5 burner gas grills. Please measure your grill surface before ordering.” At 17 by 13 inches, 221 square inches by our arithmetic, it is meant to sit on part of a grill, not fill it. On most 3-burner grills it will leave grates free beside it, which is the point of a plate this size: eggs on the steel, sausages on the grates.

It doubles as a stove-top griddle. “Designed as a universal griddle for grill and gas stove top use.” A 17 by 13 inch plate will span two burners on many gas hobs, which makes it the most versatile shape on the page if you want one griddle indoors and out. If indoor use matters most, compare our stovetop griddle guide for gas stoves, where plates are judged on hob fit.

What to weigh. It is sold by BAR.B.Q.S. No weight and no warranty stated. It ranks #40 in Griddles and #52,531 overall. If you want an uncoated plate that will season like a good pan and move between grill and hob, this is the one.

Best for: A cook who wants one bare-steel griddle for both the gas grill and the gas hob, and is happy to season it.

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10. Skyflame Stainless Steel Griddle Flat Top Plate, 17 x 13 — Lightest Plate

The only stainless plate here and by far the lightest, sold with a nonstick claim stainless rarely earns.

Key Specifications

Why We Recommend It

This is the odd one out on material. “Restaurant grade stainless steel, heat resistant, non stick and easy to clean.” Every other plate here is cast iron or carbon steel, seasoned or coated. Stainless will not rust the way bare carbon steel does and needs no seasoning. The listing’s “non stick” is the claim to treat carefully: it names no coating, and bare stainless is not generally thought of as a nonstick surface. Expect to use oil and to let food release before you move it.

It is the lightest plate by a wide margin. The weight field gives 6.44 pounds. The Uniflasy’s field gives about 21.9, about 3.4 times as much by our arithmetic, and the Weber Genesis II is 15.0. If you lift the plate on and off the grill every time, or carry it to a campsite, that difference is the main reason to choose this one. Light plates heat up and cool down faster than heavy cast iron, which the listing does not discuss but which follows from the weight.

Its size is 17 by 13 or 17 by 12.8, depending on the field. The bullet says “Measures 17 inches by 13 inches”; the size field says 17 by 12.8 by 2.2 inches. By our arithmetic that is 221 or 217.6 square inches, a difference too small to matter for fit. Like the Hisencn, it is a part-grill plate that leaves grates free beside it on most gas grills.

What to weigh. It is sold by Skyflame Outdoor and ranks #30 in Griddles and #41,108 overall. No warranty stated. It shares the Hisencn’s nominal 17 by 13 inch size; choose between them on material. Stainless for low upkeep and low weight, carbon steel for a surface that seasons.

Best for: A cook who lifts the griddle on and off often, or takes it camping, and wants no seasoning to maintain.

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