Best cast iron grill grates
Updated: 22 October 2026
You want a grate you can order this weekend, and the highest star line in the set is not the grate with the most reviews. Best cast iron grill grates, in this comparison, means a listing score built from amazon.co.uk stars, review count, a stated pack, and size lines that do not fight each other. It does not mean a cook test, and it does not mean the grate fits your barbecue. The [cast iron grill grate comparison](/hub/grill-accessories/cast-iron-grill-grate) holds the full table. Prices are amazon.co.uk listing lines. A qualifying purchase can earn a commission at no extra cost to you.
You want a grate you can order this weekend, and the highest star line in the set is not the grate with the most reviews.
You want a grate you can order this weekend, and the highest star line in the set is not the grate with the most reviews. Best cast iron grill grates, in this comparison, means a listing score built from amazon.co.uk stars, review count, a stated pack, and size lines that do not fight each other. It does not mean a cook test, and it does not mean the grate fits your barbecue. The cast iron grill grate comparison holds the full table. Prices are amazon.co.uk listing lines. A qualifying purchase can earn a commission at no extra cost to you.
Our top picks
| Badge | Product | Finish | Stated fit | Size lines | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Weber Weber 8846 | Lacquered on the amazon field | Spirit 200 and 300 in the title | One line: 54.6 × 5.9 × 41 cm | 9.4 | about £102.13 | View offer |
| Best value |  CosmoGrill CosmoGrill XL, pair | Not stated | CosmoGrill XL smoker 93437 | One line: 42 × 57 × 1 cm | 9.1 | about £32.99 | View offer |
 GFTIME GFTIME 7638, pair | Porcelain enamel | Spirit 310/320; not Genesis 300 | One size: 44.5 × 30.3 cm | 9.4 | about £34.19 | View offer |
What best means here
The score is stars out of five, times 70, plus up to 15 for the review count: nothing under 20 ratings, 5 from 20, 10 from 100, and 15 from 300. A stated pack adds 8. Size lines that do not conflict add 7. Nobody grilled a steak on these bars for the score. A 4.9 from 26 ratings cannot beat a 4.4 from 434. Weber 8846 also scores 92 and stays off the top-pick badge while amazon’s material line says alloy steel. Best value is the lowest price among cooking grates at 85 or above, which is why a £10.99 disc is not the bargain. The checks before a rank are on the cast iron grill grate buying guide.
Top pick
The top pick is the GFTIME 7638 pair at about £34.19. Each grate is 44.5 × 30.3 cm, the pair weighs 6.34 kg, and the finish field says porcelain enameled. Amazon.co.uk shows 4.4 from 434 reviews, so the score is 92. The bullets name Spirit 310 and 320 years, plus older Genesis Silver, Platinum and Gold, and they exclude Genesis 300 and 310. UK reviews include a fit on a Spirit E310, a heavier feel than worn originals, and wider gaps that let small sausages fall through. Skip it for a Genesis 300, for thin sausages, or if you wanted Weber’s own part. One review reports rust after a month. Spirit years stay on Weber Spirit cast iron grates.
Best value
The best value is the CosmoGrill XL pair at about £32.99, and only for smoker 93437. The set is 42 × 57 × 1 cm and 5 kg, with about 7 mm in the bullets. Amazon.co.uk shows 4.6 from 115 reviews, so the score is 89, the lowest price among cooking grates at 85 or above. 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 missed an XXL. Skip it for an XXL, a Weber, or the Deluxe that takes part 90111. That other listing is one grate at about £39.99 with 4.9 from 26 reviews, and a full cookbox needs two. The XL inner material field says stainless steel while the title says cast iron.
Why the Weber grates are not the bargain
Weber 8846 on amazon.co.uk is about £102.13, with 4.8 from 146 ratings and a removable centre. The material-type field says alloy steel, the finish field says lacquered, and the item line is 54.6 × 5.9 × 41 cm. Weber UK lists the same part as porcelain-enamelled cast iron at £134.99, size 1.3 × 44.5 × 52 cm, for Spirit 2-burner and 3-burner barbecues made since 2025 and for Spirit and Spirit II 2-burner barbecues from 2016 to 2024. The 16 reviews in the saved listing are marked Germany. The score ties the GFTIME pair. The metal clash is why it is not the top pick.
Weber 7853 is porcelain-enamelled cast iron for Genesis 300 series from 2016, at about £108.28. Amazon.co.uk shows 4.8 from 27 reviews, and the saved reviews are from the United States and Germany. The score is 87. That is a Genesis part, not a Spirit grate and not a value pick beside the CosmoGrill pair.
Common questions
Which grate is the top pick, and who should skip it?
The top pick is the GFTIME 7638 pair at about £34.19, 4.4 from 434 reviews, each grate 44.5 × 30.3 cm, for the Spirit 310 size named in the bullets. Skip it for a Genesis 300 or 310, which the same bullets exclude, and skip it if small sausages falling through wider bars would annoy you. One rust report after a month means the enamel claim still needs a dry barbecue. It is a listing score, not a promise that every Spirit takes these bars.
Which is the best value, and why is it not the cheapest?
The best value is the CosmoGrill XL pair at about £32.99, 4.6 from 115, for smoker 93437, because it is the lowest price among cooking grates scoring at least 85. SUMTree at about £10.99 is cheaper and scores 63, with 3.4 from 18 reviews, and it is a 19 cm disc rather than a cooking grate. The XL pair still has a crack report and a review that missed an XXL. Value here means price at a usable score for a named cooker, not the smallest number on the page.
Why is Weber 8846 not the top pick when the score is as high?
Both 8846 and the GFTIME pair score 92. The badge goes to the highest score whose material field does not contradict the title. Amazon’s 8846 page says alloy steel and lacquered, while the title says cast iron, and Weber UK says porcelain-enamelled cast iron at £134.99. The amazon price is about £102.13. The saved reviews in the file are marked Germany. Buy 8846 when the Spirit year matches Weber’s fits line. Do not buy it because 4.8 from 146 outranks 4.4 from 434 on a glance.
Does a high score mean the grate fits?
No. The score never reads your knob position. Denmay has 4.6 from 264 and scores 82 because the bullet size and the item size disagree, and the bullets themselves exclude front-knob Spirits from 2013 to 2017. GLARETEX scores 80 with agreeing sizes and only 23 ratings. Fit is the buying guide and, for a Spirit, the year page. The score only tells you which listing is less messy on the fields it actually counts.
Should you buy the 19 cm or 27.5 cm plate as a best buy?
No, not as a barbecue cooking grate. SUMTree at about £10.99 and SUMNACON at about £14.99 are round plates. UK reviews point at wood stoves, chimineas and log burners. One SUMTree review missed a Weber Master-Touch. One SUMNACON review called the rough cast unsuitable for direct grilling, and another reported rust after the first wash.
Related pages
Sources
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.
- Food contact materials regulations, GOV.UK (retrieved 21 October 2026)
- General Product Safety Regulations 2005: Great Britain (retrieved 21 October 2026)
- Consumer Rights Act 2015, Part 1 Chapter 2 (retrieved 21 October 2026)
- Weber UK: cleaning and maintenance (retrieved 21 October 2026)
- Weber UK part 7522 (retrieved 21 October 2026)
- Weber UK part 8846 (retrieved 21 October 2026)
- Broil King UK: cleaning and maintenance (retrieved 21 October 2026)
- Char-Broil UK: prepare a new gas barbecue (retrieved 21 October 2026)