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Sizzle & Scrape

Blackstone 28 vs 28 XL

The XL adds the zone the 28 is missing, and adds a specification you have to check before you buy.

By Last updated
A compact outdoor cooking station

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Quick picks

Ranked on published specifications using our scoring rubric. Tap a row for the full write-up.

#ProductBest forScorePrice
1
Hamburgers cooking outdoors over propaneBlackstone 28" Original GriddleMost households
Most households8.4Check price on Amazon
2
A compact outdoor cooking stationBlackstone 28" XL Omnivore GriddleThree zones without the 36's footprint
Three zones without the 36's footprint7.9Check price on Amazon

#ad We publish no prices: there is no verified price feed on this site, so the retailer’s page is the only price. How this is funded

Side by side

Same fields on both sides. Heat density is computed from the published BTU and cooking area, not quoted from a manufacturer.

SpecificationBlackstone 28" Original GriddleBlackstone 28" XL Omnivore Griddle
Cooking area525 sq in613 sq in
Burners23
Total output34,000 BTU45,000 BTU
Heat density64.8 BTU / sq in73.4 BTU / sq in
Cooktop10-gauge rolled carbon steelOmnivore plate
Best forMost householdsThree zones without the 36's footprint
Our score8.4 / 107.9 / 10

Blackstone 28" XL Omnivore Griddle: Retailers list this body at 28,500 BTU (Academy), 45,000 BTU and 48,000 BTU — all at 613 sq in. The surface area is settled; the heat output is not. Check the BTU figure on the exact listing you are buying.

The XL’s case: the third zone

The 28’s main limitation is having two zones. That covers most cooking, but it means a holding area costs you one of your two cooking temperatures.

The XL’s third burner fixes exactly that, in a body only modestly larger — 613 against 525 square inches. It is the best zone-to-footprint ratio Blackstone sells, and for multi-component cooking it is a real upgrade.

Electronic ignition is a quieter second advantage: it is more durable than the 28’s piezo button, and ignition is the component most likely to irritate you over several years.

The 28’s case: you know what you are getting

The XL ships at three different BTU ratings. 28,500 BTU (Academy), 45,000 and 48,000 across other retailers, all at 613 square inches.

That works out at 46.5, 73.4 and 78.3 BTU per square inch. The bottom figure is the lowest heat density of any cart griddle in our guide; the top is among the highest. They are functionally different griddles sharing a body.

The standard 28 is a consistent 34,000 BTU across 525 square inches — 64.8 per square inch, every time. If you do not want to scrutinize a spec panel, that certainty is worth something.

Plate: the 28

The standard 28 uses 10-gauge rolled carbon steel, which is thicker than most cooktops at this size and gives it more thermal mass than its BTU figure alone suggests. The XL uses the Omnivore plate — a different surface that takes seasoning differently and is not directly comparable on thickness.

Seasoning differs

The Omnivore plate is not the classic bare rolled steel. It takes seasoning differently, and the first few rounds will not look like what you would expect on a standard top.

Follow Blackstone’s guidance for that specific plate rather than generic carbon-steel advice — we cover both surfaces and compare the two plates directly.

Which to buy

28 XL if you want three zones, will check the BTU figure on the listing, and have room for the slightly larger body. The 45,000 or 48,000 BTU versions are excellent.

Standard 28 if you want a predictable specification, a thicker plate and the classic carbon-steel surface, and two zones is enough for how you cook.

Neither, and a Weber Slate 30, if you want three zones with no ambiguity at all plus a rust-resistant top — at 66.7 BTU per square inch.

The picks in detail

Specifications are linked to their source on every card. Scores are ours, derived from those specifications.

Hamburgers cooking outdoors over propane

#1 · Most households

Blackstone 28" Original Griddle

8.4/ 1064.8 BTU per sq in

The size most people should actually buy: 525 square inches and two zones covers a family of four with headroom, on a footprint that fits a normal patio.

Check price on Amazon

#ad We publish no prices: there is no verified price feed on this site, so the retailer’s page is the only price. How this is funded

Key specifications

Cooking area
525 sq in (28¾ × 18¼ in)
Burners
2, stainless H-burners
Total output
34,000 BTU
Cooktop
10-gauge rolled carbon steel
Ignition
Piezo
Zones
2, independently controlled

Specifications from BBQGuys spec sheet.

Scores

  • Cooking area7.5
  • Heat output7.0
  • Zone control7.0
  • Surface care6.5
  • Portability5.0

What works

  • The 10-gauge plate is thicker than most griddles at this size, which is what keeps temperature steady when cold food hits it
  • Two zones is genuinely enough: one hot side for searing, one moderate side for holding
  • Fits a standard patio and a standard cover, which the 36 often does not

What to know

  • Only two zones — you cannot run a dedicated warming zone and two cooking temperatures at once
  • 34,000 BTU over 525 sq in is modest heat density; recovery after a big load is slower than the 36
  • Bare carbon steel needs seasoning and a cover, same as every Blackstone
A compact outdoor cooking station

#2 · Three zones without the 36's footprint

Blackstone 28" XL Omnivore Griddle

7.9/ 1073.4 BTU per sq in

Three zones in a 613-square-inch body — the useful middle ground — but the BTU rating genuinely varies between variants, so read it off the listing in front of you.

Check price on Amazon

#ad We publish no prices: there is no verified price feed on this site, so the retailer’s page is the only price. How this is funded

Key specifications

Cooking area
613 sq in
Burners
3
Total output
28,500 / 45,000 / 48,000 BTU depending on variant
Cooktop
Omnivore plate
Ignition
Electronic
Height
59.44 in

Specifications from Academy Sports listing.

Listings disagree: Retailers list this body at 28,500 BTU (Academy), 45,000 BTU and 48,000 BTU — all at 613 sq in. The surface area is settled; the heat output is not. Check the BTU figure on the exact listing you are buying.

Scores

  • Cooking area8.0
  • Heat output7.5
  • Zone control8.5
  • Surface care6.5
  • Portability4.0

What works

  • Three zones at 613 sq in is the best zone-to-footprint ratio Blackstone sells
  • Electronic ignition is more reliable over time than a piezo button
  • Meaningfully more surface than the 28 without the 36's storage problem

What to know

  • The BTU rating is not consistent across listings — the same 613 sq in body appears at 28,500, 45,000 and 48,000 BTU
  • A 28,500 BTU example over 613 sq in is thin heat; that variant recovers slowly
  • The Omnivore plate is a different surface from the classic carbon steel and takes seasoning differently

Common questions

Is the Blackstone 28 XL worth it over the 28?
For the third zone, yes — it gives you a holding area that is not costing you a cooking temperature, in a body only modestly larger. Electronic ignition is a second durability advantage. The catch is that the XL ships at three different BTU ratings.
How many BTU does the Blackstone 28 XL have?
28,500, 45,000 or 48,000 depending on the variant, all at 613 square inches — which is 46.5, 73.4 or 78.3 BTU per square inch. That is the difference between the lowest heat density of any cart griddle in our guide and one of the highest. Check the listing.
Is the Omnivore plate different from the standard Blackstone top?
Yes. It is not the classic bare rolled carbon steel and it takes seasoning differently, so the first few rounds will not look like what you would expect on a standard top. Follow Blackstone's guidance for that specific plate.

Sources

Every specification on this page came from one of these. If you find one of them has changed, tell us and we will correct it.

A compact outdoor cooking station

Blackstone 28" XL Omnivore

613 square inches, three zones, Omnivore plate — and a BTU rating that varies by variant. How to buy the right one.

Hamburgers cooking outdoors over propane

Blackstone 28" Original

525 square inches, two zones, 10-gauge rolled carbon steel. The default recommendation for most households.

Hamburgers cooking outdoors over propane

The best 28-inch griddles

The 28 to 30-inch class compared. Two zones or three, bare steel or rust-resistant, and why this is the right size for most people.

Crepes cooking on a large circular griddle plate

Weber Slate 30"

540 square inches, three zones, rust-resistant and pre-seasoned. The strongest pick for people who cook occasionally.