The best Cast iron grill grates, compared.
Top pick: CosmoGrill 4+1, one grate Best value: CosmoGrill XL, pair – Lowest price among cooking grates scoring at least 85: about £32.99 for smoker 93437, at 4.6 from 115 reviews. Updated 21.10.2026.
A cast iron grill grate is the grid food cooks on. On amazon.co.uk that is a pair for a named gas barbecue, one grate you may need two of, or a campfire grid with legs. Most people here are replacing a worn Weber Spirit or Genesis grate. Fit comes before stars: family, year, and side knobs or front knobs. Then check that the size lines agree, and choose bare iron or porcelain enamel. Bare iron rusts if you leave it wet. The fit checklist is in the [cast iron grill grate buying guide](/hub/grill-accessories/cast-iron-grill-grate/sub/cast-iron-grill-grate-buying-guide). A title that only says Spirit is not enough. Confirm the family, the year, and whether the controls sit on the side or the front. Named gas cooking grates drop in as one or two rectangles. UK reviews of those plates mostly describe log burners, chimineas and charcoal plates. They are fit-uncertain, and they are not a cooking surface. Price on amazon.co.uk splits into three bands: about £10.99 to £23.99, about £28.99 to £39.99, and the Weber grates above £100.
A cast iron grill grate is the grid food cooks on. On amazon.co.uk that is a pair for a named gas barbecue, one grate you may need two of, or a campfire grid with legs.
36 products checked · 64 hrs invested · +18,600 readers
Swipe for more
1-2 of 10
Personal buying guide
Question 1 of 2
What are you cooking on?
CosmoGrill part 90111 is one cast iron grate at £39.99, listed at 41.5 × 30.9 × 2 cm and 4 kg. The bullets say two grates are required for the Deluxe and Pro 4+1, models 93411 or EL-2014DH, so this listing covers half the cookbox. Amazon.co.uk shows 4.9 from 26 reviews, a high star line on a small sample. The non-stick field says no, and the dishwasher field says no. The printed warranty is one year, parts only, for manufacturing issues. Twenty-six ratings cannot show how the iron behaves after a wet UK winter. A full cooking surface is two of these at this price, which is a different spend from the XL pair at £32.99. Buy one only when you are replacing a single worn half.
Pros
Cons
Best for: Replacing one worn grate on a CosmoGrill Deluxe or Pro 4+1
Less suitable: Anyone who expected a pair in the box, or a Spirit replacement
Specifications
Common questions
Does one grate cover the firebox?
No. The bullets say two cast iron grates are required for the Deluxe and Pro 4+1. This listing is one grate.
Is it dishwasher safe?
The listing says no.
What warranty is printed?
One year, parts only, for manufacturing issues.
Weber 8846 is the Gourmet BBQ System grate at £102.13 on amazon.co.uk, with 4.8 from 146 ratings. The title and the frame field say cast iron, the special-features field says a removable plate, and the finish field says lacquered. The material-type field says alloy steel and the wattage field says 230 watts, which is not a cooking-grate specification. The item line is 54.6 × 5.9 × 41 cm, while Weber UK lists porcelain-enamelled cast iron at £134.99 and 1.3 × 44.5 × 52 cm for stated Spirit years. The 16 reviews in the saved listing are marked Germany, so the 4.8 is not a UK-only sample. The components field says Camera Body. The listing score matches the GFTIME pair, and the metal contradiction is why this page does not carry the top-pick badge. Match Weber UK’s fits line before you treat the amazon metal field as the part.
Pros
Cons
Best for: A Spirit whose year sits on Weber UK’s 8846 fits line, if you will ignore the alloy-steel field
Less suitable: Anyone who needs the listing’s metal line to agree with the title, or a Genesis cookbox
Specifications
Common questions
What metal does the amazon.co.uk listing give for Weber 8846?
The title says cast iron and the frame field says cast iron. The material-type field says alloy steel and the finish field says lacquered. The wattage field says 230 watts.
Does this listing mention the Gourmet BBQ System?
Yes. The title and the model name say GBS, and the special-features field says removable plate.
Are the reviews in the saved listing from the UK?
No. The 16 reviews in the saved listing are marked Germany. The star line is 4.8 from 146 ratings.
Weber 7853 is a two-piece porcelain-enamelled cast iron Crafted grate for Genesis 300 series from 2016, at £108.28 and 7.9 kg. The size line is 56 × 5.5 × 48.5 cm, and the listing says it is not dishwasher safe. Amazon.co.uk shows 4.8 from 27 reviews. The eight reviews in the saved listing are from the United States and Germany, so that star line is not a UK sample. One review says the grate arrived broken. A Summit owner said the set was narrower than that cookbox. The bullets do not add families beyond Genesis 300 from 2016 for the Crafted system. Twenty-seven ratings and a broken-arrival report are the limit of what this page can show, and the price is still an official-part price.
Pros
Cons
Best for: A Genesis 300 from 2016 that uses the Crafted system
Less suitable: A Summit, a Spirit, or a buyer reading the stars as UK reviews
Specifications
Common questions
Which Genesis years does the title name?
Genesis 300 series from 2016, for the CRAFTED system. The bullets do not add other families.
Can it go in a dishwasher?
The listing says no.
Where were the saved reviews written?
The eight reviews in the saved listing are from the United States and Germany. One says the grate arrived broken. One Summit owner said the set was narrower than that cookbox.
The Denmay 7522/7521 pair is £28.99 of coated cast iron, 4.78 kg, with 4.6 from 264 amazon.co.uk reviews. The bullets include side burner knobs from 2009 to 2012 and Spirit 500, and they exclude Spirit E210, S210, E220 and S220 with front burner knobs from 2013 to 2017. The bullets say 38 × 28.6 cm each. The item-dimensions line says 44.5 × 26 × 1.4 cm. Those two sizes are not the same grate, so measure the cold original rather than averaging them. UK buyers report damaged boxes and a weld fault. One returned two sets before receiving an undamaged pair. The score sits at 82 because the size lines disagree, even though the review count is large and the knob years are the useful sentence on the page.
Pros
Cons
Best for: A side-knob Spirit from 2009–2012 or a Spirit 500, after you measure the old grate
Less suitable: A front-knob Spirit from 2013 onwards, or anyone who will trust both size lines
Specifications
Common questions
Which Spirit years does Denmay exclude?
The bullets exclude Spirit E210, S210, E220 and S220 with front burner knobs from 2013 to 2017. They include side burner knobs from 2009 to 2012, and Spirit 500.
Do the size lines match?
No. The bullets say 38 × 28.6 cm each. The item-dimensions line says 44.5 × 26 × 1.4 cm.
What went wrong in delivery reviews?
UK buyers report damaged boxes and a weld fault. One returned two sets before receiving an undamaged pair.
The CosmoGrill pair is £32.99 for the XL smoker, model 93437, listed at 42 × 57 × 1 cm and 5 kg, with about 7 mm in the bullets. Amazon.co.uk shows 4.6 from 115 reviews. UK reviews mention sear marks after oil or lard, and sticking until the iron is seasoned. One buyer reported a crack on the second cook. One UK review says the pair did not fit an XXL. The title says cast iron, the outer field says iron, and the inner field says stainless steel, and the listing does not call the grates dishwasher safe even though one reviewer tried a cycle. It is the best value among cooking grates here because the score is 89 and the price is the lowest at 85 or above. That holds only if smoker 93437 is the barbecue you own.
Pros
Cons
Best for: An owner of CosmoGrill XL smoker 93437 who will season the iron
Less suitable: An XXL CosmoGrill, or a Weber Spirit cookbox
Specifications
Common questions
Which barbecue does the listing name?
The CosmoGrill XL smoker, model 93437. One UK review says the pair did not fit an XXL.
Does the listing say the grates are dishwasher safe?
It does not. One reviewer put a grate in a dishwasher. That is a review, not an instruction on the listing.
What failed in the reviews?
One buyer reported a crack on the second cook. Others mention sticking until the iron is seasoned, and sear marks after oil or lard.
Fallen Fruits FF233, with Esschert in the brand field, is a cast iron campfire grid at £22.50 with screw-on legs. Amazon.co.uk shows 4.5 from 112 reviews, mostly from the UK. The title size is 34.1 × 34.1 × 10.3 cm and the item line is 33.02 × 33.02 × 10.41 cm, about a centimetre apart. Weight is 2.5 kg on the title block and 2.35 kg on the item line. UK reviews say three legs screw on and can be removed, and some buyers shortened them for an outdoor oven. More than one UK review says the gaps are wide, so smaller food falls through. Others cooked ribs and steak in a wood-fired oven. The listing is for a fire bowl, fire ring or open fire, a pan can sit on it, and it is not a drop-in grate for a Weber cookbox.
Pros
Cons
Best for: A fire bowl, fire ring or outdoor oven where you cook larger cuts
Less suitable: Sausages and other small food, or a Spirit cookbox
Specifications
Common questions
Is this a Weber replacement grate?
No. The listing is a campfire grid for a fire bowl, fire ring or open fire, and it says a pan can sit on it.
Do the legs come off?
UK reviews say three legs screw on and can be removed. Some buyers shortened them for an outdoor oven.
What do cooks say about the gaps?
More than one UK review says the gaps are wide, so smaller food falls through. Others cooked ribs and steak in a wood-fired oven.
The SUMNACON YG0432 is a round bare cast iron plate, 27.5 cm across and 1.83 kg, at £14.99. Amazon.co.uk shows 4.5 from 69 reviews. The listing says it can sear food and also hold charcoal, and the bullets say to confirm the size before you buy. UK reviews mostly describe a chiminea or a log burner. One reviewer said the rough cast was not suitable for direct grilling. Another says it went rusty brown after the first wash even though it was dried straight away. The size lines agree, and that still does not make it a gas-barbecue cooking grate or the best value, because the fit is uncertain. Use it where you have already measured a round opening near 27.5 cm.
Pros
Cons
Best for: A chiminea or log burner you have already measured at about 27.5 cm
Less suitable: Direct grilling of food, or any Weber cookbox
Specifications
Common questions
Is this a full-size barbecue cooking grate?
The listing says it can sear food and also hold charcoal. UK reviews mostly describe a chiminea or a log burner. One reviewer said the rough cast was not suitable for direct grilling.
What size is printed?
27.5 cm diameter, 1.83 kg. The bullets say to confirm the size before you buy.
Did reviews mention rust?
Yes. One UK review says it went rusty brown after the first wash even though it was dried straight away.
The GFTIME 7638 is a pair of grates at £34.19, each listed at 44.5 × 30.3 cm, with the pair at 6.34 kg. Amazon.co.uk shows 4.4 from 434 reviews, the largest count among the cooking grates here. The finish field says porcelain enameled, and the bullets name Spirit 310 and 320 years plus older Genesis Silver, Platinum and Gold, while they say it does not fit Genesis 300 or 310. Several UK reviews say the gaps are wider than Weber originals and that small sausages can fall through. Others say the pair fits a Spirit E310 and feels heavier than worn originals. One review reports rust after a month, so the enamel line is not a promise that the bars stay bright in a damp shed. The components field also says rack and thermometer, which is a messy page beside an otherwise clear size. It is the top pick in this set when the cookbox is the Spirit 310 size the bullets name.
Pros
Cons
Best for: A Spirit 310-size cookbox where you accept wider bars than a Weber original
Less suitable: Genesis 300 or 310, and thin sausages that need narrow gaps
Specifications
Common questions
Does GFTIME say this pair fits a Genesis 300?
No. The bullets name Spirit 310 and 320 years, plus older Genesis Silver, Platinum and Gold, and they say it does not fit Genesis 300 or 310.
Is the finish field porcelain enamel?
Yes. Finish type is porcelain enameled and the frame material is cast iron. The material-type line says Porzellan enamel.
What do UK reviews say about the bars?
Several say the gaps are wider than Weber originals and that small sausages can fall through. Others say the pair fits a Spirit E310 and feels heavier than worn originals.
The GLARETEX pair is sold as Weber part 66095 at £23.99, two cast iron grates at 47.6 × 33.7 cm each and 7.18 kg together. Amazon.co.uk shows 4.3 from 23 reviews. The title and the item line agree on 47.6 × 33.7 cm, and the product line adds 2 cm of height. The bullets also list 66802, 66805 and 7599, and they name Genesis II and II LX 300 variants. The pair footprint in the bullets is 47.6 × 67.3 cm. The care line says wait until the grates cool, then soak and wipe dry. The finish is not stated, and twenty-three ratings are a short sample for a part-number claim, which is why the score sits at 80 even though the length and width agree. Measure the cold Genesis grate before you treat 66095 on an aftermarket title as the official part.
Pros
Cons
Best for: A Genesis II or II LX 300 whose cold grates measure 47.6 × 33.7 cm each
Less suitable: A Spirit cookbox, or a buyer who wants a large UK review sample
Specifications
Common questions
Which Weber part number is printed?
66095, and the bullets also list 66802, 66805 and 7599. The models named are Genesis II and II LX 300 variants.
Do the size lines agree?
Yes on length and width: 47.6 × 33.7 cm. The product line adds 2 cm height. The pair footprint in the bullets is 47.6 × 67.3 cm.
What should you do before washing them?
The bullets say wait until the grates cool, then soak and wipe dry.
The SUMTree SJ20220324 is a 19 × 19 × 0.7 cm cast iron disc at 600 g and £10.99, the lowest price in this set. Amazon.co.uk shows 3.4 from 18 reviews. A UK review says it does not fit a Weber Master-Touch, even though the buyer recognised the barbecue in the pictures. Several owners used it to replace burnt fire bars in a wood stove. One said it warped into a bell shape after a season. Others reported rust. The listing says wait until the temperature has dropped, then use a heat-resistant glove. Eighteen reviews sit under the 20-rating step, which is why 63 is the low mark, and the agreeing size lines do not make the £10.99 price the best value.
Pros
Cons
Best for: A wood stove whose burnt bars you have measured at about 19 cm, if you accept a thin review sample
Less suitable: A kettle barbecue, a gas cookbox, or anyone choosing on stars
Specifications
Common questions
Will this fit a Weber Master-Touch?
A UK review says no, even though the buyer recognised the barbecue in the pictures. The plate is 19 cm across.
What did stove buyers report?
Several used it to replace burnt fire bars. One said it warped into a bell shape after a season. Others reported rust.
Does the listing say to let it cool?
Yes. It says wait until the temperature has dropped, then use a heat-resistant glove.
Ten amazon.co.uk listings were scored out of 100, using the split dated 20 October 2026. Stars are 70 points: the star line out of 5, times 70. Review count is up to 15: 0 under 20 ratings, 5 from 20, 10 from 100 and 15 from 300. Pack count is 8 when the listing states how many grates are in the box. Size lines are 7 when the printed sizes do not conflict. A second line that disagrees drops those 7 points. A material field that contradicts the title does not change the number. It removes the top-pick badge. No grate was seared or checked against a British Standard.
Amazon stars
70%Stars out of 5, times 70. A missing star line would score 0 on this block. The figure is the amazon.co.uk line for that ASIN, not a cook score.
Review count
15%Up to 15 points: 0 under 20 ratings, 5 from 20, 10 from 100 and 15 from 300. Reviews marked outside the United Kingdom stay in the count and are named in the assessment.
Pack count
8%Eight points when the listing states how many grates are in the box. A single grate for a cookbox that needs two still has a stated pack. That limit is written in the assessment, not as a second formula.
Size lines
7%Seven points when the printed sizes do not conflict. A second line that disagrees drops this block. Denmay and Fallen Fruits lose it. Uncertain fit on the round plates is not this deduction.
Fit decides this purchase before stars do. A Spirit title is not a size. Two size lines that disagree are not an average. A pair and a single grate are not the same cookbox. Bare iron and porcelain enamel are different jobs once the grate is home. The ten listings below are amazon.co.uk pages scored as listings. No grate was cooked on for this page.
A cast iron grill grate is the grid food cooks on. In the listings kept for this page, that is a pair for a named gas barbecue, a single grate you may need two of, or a campfire grid with legs. UK shoppers are mostly replacing a worn Weber Spirit or Genesis grate, or buying a brand-matched pair for a charcoal cooker. A title that only says Spirit is not enough. Confirm the family, the year, and whether the controls sit on the side or the front. Then check that every size line agrees.
Side knobs and front knobs are different grates, and 2013 is not 2009. Weber UK splits part 7522 and part 8846 by family and year. A title that only says Spirit does not make that split.
Denmay prints 38 × 28.6 cm in the bullets and 44.5 × 26 × 1.4 cm on the item line. Those are not the same grate. Measure the cold original. Do not average the two lines.
CosmoGrill part 90111 is one grate at about £39.99. The listing says the Deluxe and Pro 4+1 needs two. A full cooking surface is a different spend from the price on that page.
Confirm the barbecue family, the year and the control position before you look at stars. Weber UK part 7522 is porcelain-enamelled cast iron for Spirit 200 with side-mounted controls, Spirit 500 and Genesis Silver A, at £114.99, size 1.3 × 28.5 × 38 cm. Part 8846 on Weber UK is porcelain-enamelled cast iron at £134.99, 1.3 × 44.5 × 52 cm, for Spirit 2-burner and 3-burner barbecues made since 2025 and for Spirit or Spirit II 2-burner barbecues made from 2016 to 2024.
Choose the finish you will actually maintain. Bare cast iron needs a wash, a thin coat of high-smoke-point oil and a heat cycle. Broil King UK describes about 200°C for about 30 minutes. Char-Broil UK describes a first wash, then about 15 minutes. Food sticks until that oil is in the iron, which is what UK reviews of the CosmoGrill XL pair describe. One UK review of the SUMNACON plate says it went rusty brown after the first wash even though it was dried straight away.
Three typical situations, each with a recommendation from this comparison.
You are replacing a worn Spirit grate and the bullets' 310 and 320 years match your cookbox. The GFTIME 7638 pair is about £34.19, at 4.4 from 434 reviews, with porcelain enamel and one size line. UK reviews say the gaps are wider than Weber originals, so thin sausages can fall through. It does not fit a Genesis 300.
You own CosmoGrill XL smoker 93437 and you will season the iron. The pair is about £32.99, at 4.6 from 115 reviews. It is the lowest price among cooking grates scoring at least 85. One UK review says the pair did not fit an XXL. One buyer reported a crack on the second cook.
You want a legged grid over a fire bowl, not a drop-in gas grate. Fallen Fruits FF233 is about £22.50, at 4.5 from 112 reviews, mostly from the UK. Reviews say the legs screw on. The gaps are wide, so smaller food falls through.
The top pick is the GFTIME 7638 pair at about £34.19. It is the highest score whose material field does not contradict the title: 92, from 4.4 and 434 reviews, with porcelain enamel and one size line of 44.5 × 30.3 cm. Weber 8846 also scores 92 and does not take that badge, because the amazon material line says alloy steel while the title says cast iron. The best value is the CosmoGrill XL pair at about £32.99, the lowest price among cooking grates scoring at least 85, for smoker 93437. The round plates sit outside that price comparison. None of these scores is a cook test.
CosmoGrill XL, pair
Lowest price among cooking grates scoring at least 85: about £32.99 for smoker 93437, at 4.6 from 115 reviews.
Editorial
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Guides on what to look for, how to use a product, and common mistakes.
Public UK sources used for this comparison. Listing prices, stars and review counts are the amazon.co.uk figures for these ASINs. Retrieved 21 October 2026.
This page contains affiliate links to amazon.co.uk. If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are the UK listing lines for these ASINs. We did not run a lab test.
