The best grill grates for your gas grill are the ones that fit its cooking area and model—not simply the heaviest or most versatile option. The picks below include model-specific replacement grates for Char-Broil and Weber grills, plus an adjustable set for shoppers who need a more flexible fit. Before ordering, compare your grill’s model number and existing grate dimensions with the product details.
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Quick Comparison
| Product | Material | Best for | Key fit or size details |
|---|---|---|---|
| Uniflasy Char-Broil Replacement Grates | Porcelain-enameled iron | Select Char-Broil two- and three-burner grills | Two-piece set; check the listed grill model numbers |
| Mersemto Char-Broil Performance 5-Burner Grates | Cast iron | Select Char-Broil Performance five-burner grills | Three-piece set for matching G426 grate configurations |
| Outdoor Bazaar Adjustable Grates | Porcelain-coated steel | Grills needing adjustable replacement grids | Three grids, each 6 inches wide; depth adjusts from 12 to 19 inches |
| Leship Weber Genesis 300 Series Grates | Porcelain-coated cast iron | Select Weber Genesis 300 series grills | Two grates, each 19.5 by 12.9 inches |
| Direct Store Weber Replacement Grates | Cast iron | Select Weber Spirit and other listed models | Two grates, each 17.5 by 11.9 inches |
Our Picks: Best Grill Grates For Gas Grill reviews
1. Uniflasy Grates for Select Char-Broil Two- and Three-Burner Grills
This two-piece set is a replacement option for several listed Char-Broil Performance and TRU-Infrared models. The grates are made from porcelain-enameled iron, a construction the listing says is designed to hold heat and create pronounced sear marks.
The coated surface is intended to be easier to clean than bare iron, but it still needs sensible care. The product instructions recommend cleaning with soap and water, then drying the grates fully before storage. That drying step matters because lingering moisture can contribute to wear over time.
This is a practical pick if your current Char-Broil grates are damaged or worn and your exact grill appears on the compatibility list. The long model list is useful, but it also makes checking the model number especially important. A similar-looking grill is not enough to confirm fit.
Pros:
- Two-piece replacement set for a range of listed Char-Broil models
- Porcelain-enameled iron is designed to retain heat
- Coated surface is intended to be easier to clean
- Listing specifies compatible grill model numbers
Cons:
- Not a universal set; the grill model must match
- Needs to be dried thoroughly after cleaning
Verdict: Choose the Uniflasy set if you have a listed Char-Broil model and want a coated iron replacement, but confirm your grill number before ordering.
2. Mersemto Three-Piece Cast-Iron Set for Char-Broil Performance Grills
Mersemto sells this set for select Char-Broil Performance Series five-burner grills that use G426-0005-W1 and G426-0004-W1 cooking grids. It includes two of the G426-0005-W1 grates and one G426-0004-W1 grate, so the three sections are meant to replace a specific arrangement rather than serve as generic grids.
The cast-iron construction is a good match for cooks who want a substantial cooking surface with heat-retaining properties. Its main advantage over the adjustable steel option in this guide is that it is made for particular grill configurations. Its main limitation is the same: fit depends on the original grate style and model.
Check the model number and the part numbers on your existing grates before buying. If your grill does not use the listed G426 parts or match a compatible configuration, this set may not sit correctly, even if the grill has five burners.
Pros:
- Three-piece set replaces a specified grate arrangement
- Cast iron is designed for heat retention
- Made for select Char-Broil Performance five-burner models
- Useful option for replacing old or damaged cooking grids
Cons:
- Compatibility is limited to matching grill configurations
- Cast iron is heavier than the porcelain-coated steel option
Verdict: This is a sensible replacement set for a compatible Char-Broil Performance grill, provided its model and grate part numbers match the listing.
3. Outdoor Bazaar Adjustable Porcelain-Coated Steel Grates
This three-pack is designed for shoppers who need more flexibility than a fixed, model-specific replacement grate can offer. Each grid is 6 inches wide, and its depth adjusts from 12 to 19 inches. Together, the three grids provide 18 inches of stated width coverage.
Each grate arrives in two pieces that you assemble to the needed depth using the included bolts, washers, and wing nuts. The adjustable design can help when a grill’s cooking area falls within the listed size range, but it is not a guarantee of universal compatibility. Measure your old grates and the available space before ordering.
The grids are made from porcelain-coated steel rather than cast iron. That makes this set a different choice from the heavier, fixed-fit cast-iron options here. The coating is intended to help with cleaning and heat retention, while the adjustable construction adds setup work and extra hardware to keep track of.
Pros:
- Adjustable depth from 12 to 19 inches per grid
- Three 6-inch-wide grids provide 18 inches of total width coverage
- Includes assembly hardware
- Fits a range of grill brands when dimensions and layout match
Cons:
- Requires assembly and careful size checks
- Porcelain-coated steel is a different feel and build from cast iron
Verdict: Pick this set when adjustability matters and your measured grill space falls within its stated dimensions; skip it if you need a precise, model-specific replacement.
4. Leship Porcelain-Coated Cast-Iron Grates for Weber Genesis 300
This two-grate set is made for select Weber Genesis 300 series grills. Each grate measures 19.5 by 12.9 inches, and the listing names specific E, S, and EP models. The product is described as porcelain cast iron, combining an iron cooking surface with a coated finish.
Cast iron is valued for holding heat, while the listing says these grates are designed to produce prominent sear marks. The two-piece layout is intended to replace the corresponding cooking surface on compatible grills. Compare both the model and dimensions with your existing grates before you buy.
Compatibility is the key drawback to watch. The listing excludes Genesis II 300 and Genesis II LX 300 series grills. Those names can be easy to confuse with other Genesis 300 models, so check the exact grill series rather than relying on the “300” label alone.
Pros:
- Porcelain-coated cast iron is designed to retain heat
- Two-piece set covers a specified cooking surface
- Exact grate dimensions are provided
- Compatible models are listed by series and model name
Cons:
- Does not fit the listed Genesis II 300 and Genesis II LX 300 series
- Requires close model and dimension checks
Verdict: The Leship set is a strong candidate for a matching Genesis 300 grill, but confirm both the series and grate measurements to avoid a costly fit mistake.
5. Direct Store Cast-Iron Grates for Select Weber Models
Direct Store’s set includes two uncoated cast-iron cooking grates, each measuring 17.5 by 11.9 inches. The listing identifies replacement fit for select Weber Spirit models, as well as several other Weber grill families and part numbers. It also names Weber part 7638.
The product description emphasizes a heavy, durable cast-iron build. That material may suit you if you prefer a solid grate and want to replace a complete two-piece set. Unlike the porcelain-coated options, this set does not list an enamel finish, so follow suitable cast-iron care practices and dry it after cleaning.
The compatibility information is extensive, but the listing warns that the brand and model references are not a substitute for checking size and original parts. It also notes that cast-iron grids can be damaged in transit. Inspect the grates when they arrive and contact the seller if there is a shipping issue.
Pros:
- Two-piece cast-iron set with dimensions provided
- Lists compatibility with select Weber Spirit and other Weber models
- Names Weber replacement part 7638
- Heavy construction may suit shoppers seeking a substantial grate
Cons:
- Large compatibility list makes exact model and size checks essential
- Cast iron can break if mishandled or damaged in transit
Verdict: Consider this set if you want cast iron and your Weber model, grate dimensions, and replacement part details match the listing.
How to Choose Grill Grates for a Gas Grill
Confirm the grill model before anything else
Replacement grates are often made for a particular grill series, burner layout, or original part number. Look for the model label on your grill and compare it with the compatible models listed by the seller. A brand name or burner count alone does not confirm fit.
Measure your current grates and cooking area
Measure each existing grate separately, including width, depth, and thickness if relevant. For multi-piece sets, note how the pieces sit together and how much of the firebox they cover. Adjustable grates still need to fit within their stated range and leave enough room to sit securely.
Choose a material that suits your priorities
Cast iron is a heavier option and is commonly chosen for its ability to hold heat. Porcelain-coated iron combines an iron base with a coated surface, while porcelain-coated steel is a lighter alternative in the products covered here. Consider the care instructions and handling needs of the material, not just the cooking surface.
Check the number and arrangement of pieces
Some grills use two large grates, while others use three sections of different sizes. Make sure the replacement set includes the same layout as your grill. A set with the correct total width can still be unsuitable if its pieces do not match the original arrangement.
Consider assembly and maintenance
Fixed replacement grates are generally simpler to install when they match the grill. Adjustable grids may need assembly with included hardware. For coated grates in this guide, the listing recommends cleaning with soap and water and drying them completely. Cast-iron options should also be handled carefully, especially during cleaning and storage.
Read exclusions as carefully as compatibility claims
Product listings may name models that fit and others that do not. Pay close attention to series names and model variations, such as the difference between Genesis and Genesis II. If your model is not listed, compare dimensions and part numbers or contact the seller before ordering.
Frequently Asked Questions
How do I know which replacement grill grates fit my gas grill?
Find the grill’s model number, then compare it with the replacement grate’s compatibility list. Also measure the existing grates and check the number and arrangement of pieces. Do not rely on the grill brand or burner count alone.
Are cast-iron grates better than porcelain-coated grates?
Neither is best for every grill. Cast iron offers a heavy cooking surface and is valued for heat retention. Porcelain-coated grates have a coated finish and may be easier to clean, but they still need appropriate care. Match your choice to your preferred upkeep and the grate style your grill requires.
Can I use adjustable grill grates as universal replacements?
Adjustable grates can fit a range of sizes, but “universal” does not mean they fit every grill. Check the width, depth range, assembly style, and support points against your cooking area before buying.
Should replacement grates cover the entire firebox?
They should match the intended cooking surface and sit securely in the grill. Use your original grates as a guide for dimensions and layout. Grates that are too short, too wide, or arranged differently may not rest properly.
How should I care for porcelain-coated grates?
The product instructions for the coated grates in this guide recommend cleaning with soap and water and drying them completely before storage. Follow the care directions provided with your specific set.
What should I do if a cast-iron grate arrives damaged?
Inspect the grates when they arrive. The Direct Store listing notes that cast-iron grids can be damaged during transportation and advises contacting the seller if that happens. Keep the order information and follow the seller’s instructions.
Final Recommendation
For a model-specific replacement, start with the grill’s exact model number and choose the matching set: Uniflasy or Mersemto for compatible Char-Broil grills, or Leship or Direct Store for the Weber models listed. If your grill’s grate dimensions are less common, Outdoor Bazaar’s adjustable set offers more sizing flexibility, but it still needs careful measuring. The safest choice is the one that matches your grill’s model, dimensions, and original grate layout.