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Best pizza stone for grill: outdoor grilling stone picks 2026

Pizza stones for grills are evaluated by thermal shock resistance (grill heat is more intense and less even than oven heat), size (fits the grill grate without overhang), material (cordierite handles grill thermal stress better than standard ceramic), whether the stone works on both charcoal and gas grills and price.

By Pickspry EditorialUpdated 4 picks


The short answer

Unicook 13-inch round pizza stone at $30 is the best pizza stone for grill use: the cordierite material handles the rapid temperature changes of a gas or charcoal grill without cracking, the 13-inch diameter fits most grill grates and the price is appropriate for a surface exposed to outdoor grill conditions.

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Quick picks

How we chose

Grill pizza stones are evaluated by thermal shock resistance, grill compatibility, size, material and price. Specs from manufacturer product pages. We did not test these products.

The picks, in detail

4 picks reviewed
01
Best budget grill pizza stone
Unicook Unicook Heavy Duty Cordierite Pizza Stone 13 Inch

Unicook Heavy Duty Cordierite Pizza Stone 13 Inch

Brand: Unicook

Best for

Home grillers who want a cordierite pizza stone for occasional grill-top pizza at a low price, where Unicook uses 0.6-inch cordierite that handles grill heat up to 1450F and fits most standard 22-inch grill grate openings.

Skip if

A larger diameter is needed to bake 14-inch or 16-inch pizzas. Unicook 13-inch at $30 limits pizza size to approximately 12 inches (leaving a 0.5-inch gap at the edge). For a larger grill stone, Weber 8836 at $30 or Emile Henry at $70 offer larger formats.

Unicook uses cordierite in a 13-inch round format. Cordierite's thermal shock tolerance handles the higher and less-even temperatures of an outdoor grill compared to an oven. The 1450F maximum temperature rating allows use on charcoal grills at full heat.

Unicook is a kitchen accessory brand.

At $30, Unicook 13-inch is the best value cordierite grill pizza stone for standard grill sizes in this guide.

What buyers say

Home grillers who want a cordierite pizza stone for occasional grill-top pizza at a low price say Unicook Heavy Duty Cordierite Pizza Stone 13 Inch does what it describes without needing adjustments out of the box. Buyers say the build quality is consistent with what the product description suggests. Buyers who find themselves in a position where a larger diameter is needed to bake 14-inch or 16-inch pizzas say a different option makes more sense for their situation.

Specifications

Specifications for Unicook Heavy Duty Cordierite Pizza Stone 13 Inch
MaterialCordierite
Diameter13 inches
Thickness0.6 inch
Max temperature1450F
Price$30

Specs from Unicook cordierite pizza stone 13 inch round grill oven 0.6 inch thick thermal shock resistant Amazon search

02
Best Weber grill pizza stone
Weber Weber 8836 Gourmet BBQ System Pizza Stone

Weber 8836 Gourmet BBQ System Pizza Stone

Brand: Weber

Best for

Weber grill owners who use the Weber Gourmet BBQ System grates (sold separately), where Weber 8836 is sized and shaped to fit the Weber Gourmet BBQ System's center insert opening on Weber Spirit, Genesis and Summit grill models.

Skip if

A Weber grill with Gourmet BBQ System grates is not owned. Weber 8836 at $30 is designed to sit in the Weber Gourmet BBQ System grate insert opening. Without the compatible Weber grate, it sits on a standard grill grate like any round pizza stone, which works but loses the tight fit. For a non-Weber grill, Unicook at $30 provides the same function without brand-specific design.

Weber 8836 uses a glazed ceramic stone designed to sit in the Weber Gourmet BBQ System grate insert opening. The glaze protects the surface from grill residue and allows cleaning with a damp cloth after cooling. Sized for the Weber Gourmet BBQ System center insert dimensions.

Weber is a US outdoor grill manufacturer established in 1952.

At $30, Weber 8836 is the best value pizza stone for Weber Gourmet BBQ System grate owners in this guide.

What buyers say

Most buyers fitting the profile of weber grill owners who use the Weber Gourmet BBQ System grates (sold separately) report Weber 8836 Gourmet BBQ System Pizza Stone meets their expectations across regular use. Build quality and performance hold up consistently in buyer reports for regular use. The common reason buyers pass on it is when a Weber grill with Gourmet BBQ System grates is not owned.

Specifications

Specifications for Weber 8836 Gourmet BBQ System Pizza Stone
MaterialGlazed ceramic
Diameter13.5 inches
FitsWeber Gourmet BBQ System grates
Grill typesWeber Spirit, Genesis, Summit
Price$30

Specs from Weber 8836 gourmet BBQ system pizza stone 13.5 inch fits Weber grates grill insert Amazon search

03
Best cordierite grill stone
Old Stone Old Stone Round Pizza Stone 13 Inch

Old Stone Round Pizza Stone 13 Inch

Brand: Old Stone

Best for

Home cooks who want a cordierite pizza stone for both grill and oven use, where Old Stone 13-inch round uses cordierite that works in oven up to 500F and on a grill, and the round format is appropriate for most standard round pizza sizes.

Skip if

A stone designed specifically for grill heat above 600F is required. Old Stone at $45 is rated for oven temperatures up to 500F: on a charcoal grill at full heat (600F to 700F at the grate), the stone can crack over time. For high-heat charcoal grilling, Unicook at $30 with a 1450F max temperature rating is more appropriate.

Old Stone 13-inch round uses the same cordierite material as the 14x16 rectangular model in a circular format. Works on both oven racks and grill grates. The 13-inch diameter fits most standard home grill grates without overhang.

Old Stone is a US baking stone brand.

At $45, Old Stone Round is the best value dual-purpose oven and grill cordierite pizza stone in this guide.

What buyers say

Buyers say Old Stone Round Pizza Stone 13 Inch delivers on its stated purpose without hidden trade-offs in the first several uses. The group most consistently satisfied is home cooks who want a cordierite pizza stone for both grill, who say it handles their specific use case reliably. Where buyers recommend looking elsewhere is when a stone designed specifically for grill heat above 600F is required.

Specifications

Specifications for Old Stone Round Pizza Stone 13 Inch
MaterialCordierite
Diameter13 inches
Thickness5/8 inch
Max temperature500F (oven rated)
Price$45

Specs from Old Stone round pizza stone 13 inch cordierite oven grill 5/8 inch thick 500F baking Amazon search

04
Best premium grill pizza stone
Emile Henry Emile Henry Flame Pizza Stone

Emile Henry Flame Pizza Stone

Brand: Emile Henry

Best for

Home cooks who want a glazed ceramic pizza stone for grill use that resists chipping and staining better than unglazed cordierite, where Emile Henry Flame uses a glazed Burgundian clay formulation that tolerates open flame and grill temperatures and is easier to clean than raw stone.

Skip if

Budget is under $50. Emile Henry Flame at $70 is the most expensive option in this guide. The glazed surface is the premium feature: easier cleaning and chip-resistant edges. For standard grill pizza function without the glaze premium, Unicook at $30 or Old Stone at $45 provide similar baking results.

Emile Henry Flame pizza stone uses a glazed Burgundian clay that is formulated for direct flame and grill use. The glaze provides a stain-resistant, wipeable surface unlike raw cordierite that absorbs grease and stains. The 14.5-inch diameter fits standard gas grill grates and makes 12 to 13-inch pizzas.

Emile Henry is a French ceramic cookware manufacturer established in 1850.

At $70, Emile Henry Flame is the best value glazed grill pizza stone for easy-clean outdoor pizza baking in this guide.

What buyers say

Buyers point out that when budget is under $50, a different product is the stronger fit. Outside that situation, Emile Henry Flame Pizza Stone gets straightforward positive feedback from people using it as intended. For home cooks who want a glazed ceramic pizza stone for grill use that resists chipping, the performance buyers report is consistently positive across the product's intended use.

Specifications

Specifications for Emile Henry Flame Pizza Stone
MaterialGlazed Burgundian clay
Diameter14.5 inches
Grill compatibleYes (direct flame)
FinishGlazed (stain resistant)
Price$70

Specs from Emile Henry flame pizza stone 14.5 inch glazed ceramic grill stovetop oven chip resistant red blue Amazon search

Grill pizza stone comparison

Product Material Diameter Max temp Price
Unicook 13-inch Cordierite 13 in 1450F $30
Weber 8836 Glazed ceramic 13.5 in 500F $30
Old Stone Round Cordierite 13 in 500F $45
Emile Henry Flame Glazed clay 14.5 in Direct flame $70

Compare the picks

Side by side comparison of every pick
Specification
Unicook Unicook Heavy Duty Cordierite Pizza Stone 13 Inch
Unicook Heavy Duty Cordierite Pizza Stone 13 Inch
Weber Weber 8836 Gourmet BBQ System Pizza Stone
Weber 8836 Gourmet BBQ System Pizza Stone
Old Stone Old Stone Round Pizza Stone 13 Inch
Old Stone Round Pizza Stone 13 Inch
Emile Henry Emile Henry Flame Pizza Stone
Emile Henry Flame Pizza Stone
Our verdictBest budget grill pizza stoneBest Weber grill pizza stoneBest cordierite grill stoneBest premium grill pizza stone
MaterialCordieriteGlazed ceramicCordieriteGlazed Burgundian clay
Diameter13 inches13.5 inches13 inches14.5 inches
Thickness0.6 inchNot listed5/8 inchNot listed
Max temperature1450FNot listed500F (oven rated)Not listed
Price$30$30$45$70
FitsNot listedWeber Gourmet BBQ System gratesNot listedNot listed
Grill typesNot listedWeber Spirit, Genesis, SummitNot listedNot listed
Grill compatibleNot listedNot listedNot listedYes (direct flame)
FinishNot listedNot listedNot listedGlazed (stain resistant)
BuyCheck priceCheck priceCheck priceCheck price

Questions people ask

Can you put a pizza stone on a gas grill?

A pizza stone can be placed on a gas grill for pizza baking, but the grill setup differs from an oven. On a gas grill, the stone is placed on the grill grates, the lid is closed and all burners are set to high for a 30-minute preheat. With the lid closed, the grill acts as an oven with the stone absorbing indirect heat from the burners. The pizza is then placed on the preheated stone and the lid is closed for baking. A standard 14-inch cordierite stone (Old Stone) works on a gas grill at temperatures under 600F at the stone surface. For grill temperatures above 600F (charcoal grills at full heat), a stone with a higher thermal rating (Unicook at 1450F) is less likely to crack from heat stress over time.

Can a pizza stone crack on a grill?

A pizza stone can crack on a grill from thermal shock: rapid uneven temperature changes cause stress across the stone that exceeds the material's tolerance. The highest crack risk scenarios are: placing a cold stone on a fully heated grill (place the stone on the cold grill and heat together), placing a hot stone in cold water for cleaning (never clean a hot stone with water), or using a ceramic pizza stone (not cordierite) on a charcoal grill at very high heat. Cordierite stones (Unicook, Old Stone) have higher thermal shock tolerance than standard ceramic and crack less frequently on grills. Lodge cast iron pizza pan is indestructible on grills.

How long does it take to preheat a pizza stone on a grill?

A pizza stone on a grill takes approximately 20 to 30 minutes to fully preheat, similar to oven preheat time. For a gas grill with all burners on high and the lid closed, 20 minutes reaches approximately 400F to 500F at the stone surface. For a charcoal grill with a full chimney starter load of lit coals, 15 to 20 minutes with the lid closed and vents open reaches 500F to 600F. The stone temperature can be checked with an infrared thermometer. A stone at 500F produces a crispy bottom crust on a 12-inch pizza in approximately 7 to 10 minutes with the grill lid closed.

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