Grill
Cast iron holds heat in a way that thin steel does not, which is exactly what a grill needs when cold food lands on it. Replacing a steel grate with cast iron is the single biggest improvement available to most grills — provided the dimensions match, which is where most of these purchases go wrong.
Five pieces of iron, and the measurement that decides all of them.
The Weber Crafted grates are porcelain-enameled cast iron for Genesis grills. Enamel needs no seasoning, and it rules out wire brushes and chainmail, because enamel is glass.
The QuliMetal 17.5 in grates are sold for Weber Spirit grills. A named model list removes most of the measuring problem, but check your exact model before ordering.
The Aura Outdoor Products grate replaces the grate on a 22-inch Weber kettle with cast iron, at about $80.
The Broil King 11241 is a cast iron cooking grate for Baron grills at about $21. Read the listing for the exact fit.
The Lodge square grill pan goes on a stovetop, an oven, a grill or a campfire, at about $25. It holds food that would fall through a grate.
Bare iron: hot water, a stiff brush, dry it on the heat and wipe with oil. Porcelain-enameled iron: hot water and a soft brush, and never chainmail.
Where heat retention gives searing and marking that thin steel cannot.
Where small or delicate items would fall through bars.
Where a cast iron pan turns a grill into a stovetop.
Where thermal mass evens out the swings of a charcoal fire.
| The use | Why cast iron | The cost |
|---|---|---|
| Searing and marking | Heat retention | Weight |
| Small items | A solid plate | Slower to heat |
| Long cooking | Thermal mass | Maintenance |
| Outdoors | Not its natural home | Rusts if neglected |
Outdoors, cast iron faces everything it dislikes: rain, humidity, long idle periods and acidic marinades. The seasoning that protects it indoors is under constant attack, which is why grill cast iron needs more attention than the same material in a kitchen.
Heavy, hot and slow to cool.
Prices quoted in this text were read on October 31, 2026. The live price is at the top of the page.
One porcelain-coated cast iron cooking grid, 17.5 × 6.17 in, reversible with a pointed side for searing marks and a concave side to channel juices, for Baron 300/400/500 (2013+) and Crown 300/400/500 (2012+)
A reversible porcelain-coated grid — pointed for sear marks, concave to vaporize the juices.
Best for: A Broil King Baron or Crown, where the reversible faces are worth buying several of
≈ $21
Weber Crafted porcelain-enamelled cast iron cooking grates measuring 0.4 in high by 26.8 in wide by 18.9 in deep, for Genesis 300 series gas grills from 2016, requiring the Weber Crafted frame kit
Porcelain-enamelled cast iron at 26.8 × 18.9 in for a Genesis 300 — and the frame kit is extra.
Best for: A Genesis 300 owner buying into the Weber Crafted system — not a plain grate replacement
≈ $140
A set of solid cast iron grill grates, 17.5 × 11.9 in each and 17.5 × 23.8 in in total, for Weber Spirit 300 and 400 series, Spirit II, GS4 and multiple Genesis models, replacing Weber parts 7638, 7525, 7527, 65619 and 65906
A solid bare cast iron set for Weber Spirit, and the only grate here that publishes what it does not fit.
Best for: A Weber Spirit 300 or Spirit II — the clearest fitment information on this shelf
≈ $40
A 21.5 in round cast iron cooking grate 0.5 in deep for 22 in kettle grills, with a porcelain enamel coating, for Weber Kettle, RecTeq Bullseye and barrel grills
A 21.5 in round cast iron grate for a 22-inch kettle, at 8.0 lb (3.6 kg) — the lightest casting here.
Best for: A 22-inch Weber kettle, if you want one solid casting rather than two half-moons
≈ $80
10.5 in (27 cm) square · pre-seasoned cast iron · raised ribs that channel grease · PFAS-free stated
A 10.5-inch square cast iron grill pan, pre-seasoned, for grill marks on the stovetop for about $25.
Best for: Steaks and burgers indoors when you cannot use a grill.
≈ $25
Measure the opening the grate sits in, not the old grate — grates can be undersized. Then check the listing’s dimensions, and for a model-specific grate check the model list. The GFTime here names Weber Genesis E/S/EP-310, 320 and 330.
Bare cast iron does: oil it, heat it, repeat. Enameled cast iron does not, and it should not be treated with chainmail or a wire brush — enamel is a glass coating.
A grate with a removable center section, so an insert — a griddle plate, a wok ring, a pizza stone — drops into the middle. The Tepro here is the one with that feature.
For searing and marking, yes: it holds heat as thin steel cannot. The cost is weight and considerably more maintenance.
Quickly, if left exposed outdoors. Grill cast iron faces rain and long idle periods, which is exactly what it dislikes.
Enamel resists rust and can chip under heat and knocks. Bare iron needs seasoning and can always be restored.
Brush while still warm, then oil lightly. Harsh cold scrubbing strips the seasoning and leaves it to rust.
No. It has to fit exactly, since a grate that shifts under food is a genuine hazard. Universal fits rarely are.
Often not. Neglected cast iron performs worse than stainless, and occasional users rarely keep up the routine.
Good for: A Broil King Baron or Crown, where the reversible faces are worth buying several of
What it does best: The only reversible grate on this shelf: a searing face and a juice-channelling face in one casting
What it does badly: ONE grid, so a three-burner grill needs three — about $63 for 324 square inches
Good for: A Genesis 300 owner buying into the Weber Crafted system — not a plain grate replacement
What it does best: Publishes exact dimensions and a weight, so the casting density can be checked — 15.6 grams per square inch
What it does badly: Twenty-eight cents a square inch, four times the Direct Store three-grid set
Good for: A Weber Spirit 300 or Spirit II — the clearest fitment information on this shelf
What it does best: The only grate on this shelf that publishes incompatibilities, which is what a replacement part buyer actually needs
What it does badly: Claims bare cast iron "won’t chip or rust easily", and bare cast iron does rust
Good for: A 22-inch Weber kettle, if you want one solid casting rather than two half-moons
What it does best: Publishes an exact fitted size — 21.5 inches — rather than only the nominal 22-inch kettle name
What it does badly: Claims a porcelain enamel coating and a pre-seasoned surface, which exclude each other
Good for: Steaks and burgers indoors when you cannot use a grill.
What it does best: About $25, a fraction of the imported coated pans on this shelf
What it does badly: Ribs make cleaning slower than a flat pan
$21 – $35
4 models
$36 – $80
5 models
$123 – $140
4 models
Lids, handles and spares from the same aisle, at the price we read. Confirm they match the pan you choose before ordering: it turns on the diameter and the part number, which the product page gives.
The pans here are drawn from the catalog of this site. Specifications come from the maker and from the Amazon product page; prices are what Keepa recorded on the date below, and both move. Order is set by declared specifications, by stated strengths against stated limits, and by price. Nothing here has been cooked with by us, and no claim to the contrary is made.
Last checked on
Prices quoted in these summaries are dated readings. The live price is shown next to each product.
