Skip to content
KeenCart.net

Product Reviews & Buying Guides

6 models in this file

Choosing the Right Size Unicook Pizza Stone

By Jack Forsythe 4 October, 2026 12 min read

Choosing the Right Size Unicook Pizza Stone

As Amazon Associates, we earn from qualifying purchases. This means we may receive a small commission at no extra cost to you if you click through and make a purchase.

Unicook is widely recognized for producing durable cordierite baking stone models engineered to withstand intense thermal demands in household ovens and outdoor barbecue setups. Kiln-sintered at 2,100 degrees Fahrenheit, each Unicook cordierite pizza stone offers high heat retention, thermal shock resistance, and an intricate micro-porous texture that absorbs excess surface moisture from raw dough to create a crisp crust. Outdoor cooks, campsite chefs, and cabin travelers frequently choose these stones because cordierite delivers steady, uniform heat over charcoal grates or open gas flames without warping or emitting unwanted chemical odors.

The models in this lineup differ primarily in overall footprint, profile shape, and total carrying weight, ranging from compact square slabs designed for tabletop appliances to expansive rectangular decks engineered for high-volume family baking. For grillers who pack cooking gear for state park cabins, tailgate setups, or weekend campsites, choosing the proper dimensions and weight ensures the slab fits securely on portable grates while maintaining essential perimeter airflow. In this unicook pizza stone comparison, we examine exterior measurements, clearance needs, and practical uses to determine which unicook stone to buy for your traveling kitchen or home patio.

The line-up at a glance

Unicook Pizza Stones Compared

Model Dimensions Weight Heat Limit Included Accessories
Unicook 16″ Round Pizza Stone 16-inch diameter x 0.57-inch thickness 7.4 lbs 1,450°F Plastic scraper
Unicook 20 x 13.5 Inch Extra 20 x 13.5 x 0.6 inches 10.69 lbs (5.89 kg) 1,450°F Plastic dough cutter
Unicook 15 x 15 Inch Square 15 x 15 x 0.57 inches 8.0 lbs 1,450°F Plastic scraper
Unicook 15″ Round Pizza Stone 15-inch diameter x 0.6-inch thickness 6.7 lbs 1,450°F Plastic scraper
Unicook 20 x 16 Inch Extra 20 x 16 x 0.6 inches 15.8 lbs 1,450°F Pizza dough cutter
Unicook 12″x12″ Square Pizza Stone 12 x 12 x 0.6 inches 2.4 kg 1,450°F Dough scraper

No. 1 of 6 · Unicook

Unicook 16″ Round Pizza Stone for Large Grills

9.2/10 Our score

Unicook 16" Round Pizza Stone
Unicook 16″ Round Pizza Stone

Best for: Large home grills and backyard cookouts

What the listing says

  • Durable Construction Unicook pizza stone is made of Cordierite, sintered in 2100°F kiln for hours, no odor under proper use.
  • Secret of Super Crisp Crust Pizza: Full of invisible micro-pores which draw out moisture from dough,…
  • Multi-functional Pizza Stone 16 inch round pizza stone has golden thickness 0.57"(14.5mm), weight up to 7.4 lbs.
  • Plastic Scraper A multi-purpose plastic scraper is a bonus which can be used as a dough cutter or…
  • WARNING Never use soap or detergent to clean the stone!

Pros

  • Generous 16-inch baking surface
  • Withstands 1450°F temperatures
  • Includes dough scraper tool

Cons

  • Heavy for compact travel grills

The Unicook 16″ Round Pizza Stone is a heavy-duty baking slab built for bakers who want to cook expansive round pies on standard charcoal kettles, broad gas barbecue stations, or standard home oven racks. Constructed from pure cordierite that has undergone hours of high-temperature sintering in a 2,100-degree Fahrenheit kiln, this durable stone resists thermal shock and endures temperatures up to 1,450 degrees Fahrenheit (787 degrees Celsius). Its wide circular format measures 16 inches across with a 0.57-inch (14.5 mm) thickness, offering a balanced thermal foundation that distributes heat evenly across the base of both fresh dough and frozen pizzas.

The surface of this unicook 16 inch round pizza stone contains thousands of invisible micro-pores that absorb excess moisture during the bake, preventing soggy centers and creating an evenly browned crust. At 7.4 pounds, the stone stays planted on wire grill grates while you maneuver a pizza peel across its face. Unicook includes a multi-purpose plastic scraper with the product, which works as a bench cutter when portioning dough or as a scrape-off tool for burnt flour once the stone is completely cool. Caring for this slab requires gentle dry scraping and rinsing with water, while soap, chemical cleaners, and oil seasoning must always be avoided.

This round slab is best suited for backyard barbecue enthusiasts and cabin cooks who work with spacious 22-inch kettle grills or large oven cavities. The circular perimeter conforms naturally to round kettle walls, maximizing cooking surface while preserving perimeter convection currents. Grillers traveling with ultra-compact tailgate burners, however, will find this 16-inch model overly wide for tight spaces, making a smaller circular slab or compact square alternative easier to pack into mobile camping totes.

See it on Amazon

No. 2 of 6 · Unicook

Unicook 20 x 13.5 Inch Extra for Cabin Ovens

9.6/10 Our score

Best for: High-volume batch bakers and broad grills

What the listing says

  • 20 Inch Large Pizza Stone for Oven: 20" x 13.5", golden thickness 0.6"(15mm), weighs around 10.69…
  • Even Cooking Baking Stone The Unicook oven baking stone is made of Cordierite and heat resistant up to 1,450℉(787℃).
  • Secret to Crispy Pizzas: The porous structure of the cooking stone absorbs excess moisture from pizza…
  • Versatile Plastic Dough Cutter The Unicook pizza stone for grill comes with a plastic scraper that can be used as…
  • Cleaning and Care: Allow stone to cool down before removing from oven or grill.

Pros

  • Expansive 20 by 16 inch surface
  • Excellent heat retention
  • Reversible cooking faces

Cons

  • Heavy 15.8 pound total weight
Unicook 20 x 13.5 Inch Extra
Unicook 20 x 13.5 Inch Extra

Best for: Cabin ovens and multiple small loaves

Pros

  • Bakes 2 to 3 pizzas at once
  • Reversible dual sided design
  • Includes plastic dough cutter

Cons

  • Requires wide oven racks for clearance

The Unicook 20 x 13.5 Inch Extra large baking stone (model BP20135 from Homepro Manufacturing) is engineered for broad cooking chambers where a standard circular plate leaves unused rack space. Measuring 20 inches in length by 13.5 inches in width with a 0.6-inch (15 mm) thickness, this rectangular stone weighs 10.69 pounds (5.89 kg). The elongated surface accommodates two to three personal pizzas, artisanal baguettes, or multiple loaves of sandwich bread simultaneously, turning ordinary kitchen ranges into high-output hearths.

Built from cordierite, this unicook extra large pizza stone tolerates working environments up to 1,450 degrees Fahrenheit (787 degrees Celsius) without emitting chemical smells or cracking under sudden heat changes. The porous structure draws steam away from dough bottoms to prevent soft centers and hot spots. Unicook provides a plastic dough cutter and scraper to assist in food prep and residue cleanup. The slab is fully reversible, allowing you to alternate between smooth sides. When placing the stone inside an oven or grill, ensure at least a one-inch air gap surrounds all edges to facilitate proper thermal airflow.

This model is ideal for cabin cooks, family vacationers, and entertainers who prepare multiple dishes in a single baking session. While its 10.69-pound heft demands careful handling, the rectangular profile maximizes the flat cooking area of deep, wide racks. Cooks looking for dedicated outdoor appliances often compare this setup with a black stone pizza oven, but those working with regular camp stoves or smaller vehicle trunks may find smaller square units easier to store.

See it on Amazon

No. 3 of 6 · Unicook

Unicook 15 x 15 Inch Square for Barbecue Grates

8.6/10 Our score

Unicook 15 x 15 Inch Square
Unicook 15 x 15 Inch Square

Best for: Standard kitchen ovens and barbecue grills

What the listing says

  • Multi-functional Pizza Stone 15 inch square pizza stone measures 15" x 15", golden thickness 0.57"(14.5mm), weight up to 8 lbs.
  • Durable Construction Unicook pizza stone is made of all Cordierite, sintered in 2100°F kiln for hours, no odor under proper use.
  • Secret of Super Crisp Crust Pizza: Special porous structure of the baking stone helps to distribute…
  • Plastic Scraper A multi-purpose plastic scraper is a bonus which can be used as a dough cutter or…
  • Warnings Never use soap or detergent to clean the stone!

Pros

  • Even heat distribution
  • High thermal shock resistance
  • Micro-pores create crisp crusts

Cons

  • Heavier than equal diameter round stones

The Unicook 15 x 15 Inch Square cordierite baking stone (model BP15015) offers a symmetrical footprint that maximizes flat baking space on rectangular barbecue grates and home oven shelves. Measuring 15 inches by 15 inches with a 0.57-inch (14.5 mm) thickness, this unicook square pizza stone weighs 8.0 pounds. Homepro Manufacturing sinters the cordierite material in a 2,100-degree Fahrenheit kiln for multiple hours, ensuring structural durability, absence of odor, and resilience against sudden temperature fluctuations.

With an operational ceiling of 1,450 degrees Fahrenheit (787 degrees Celsius), the stone uses its specialized porous composition to extract moisture from wet dough, helping you avoid the damp centers associated with metal baking sheets. Unicook includes a multi-purpose plastic scraper for dividing dough batches and cleaning baked-on residue once the stone has cooled to room temperature. The manufacturer emphasizes that users should never apply cooking oil or grease to season the stone and should hand wash it exclusively with water without detergent.

This 15-inch square model suits outdoor entertainers and cabin travelers who bake rectangular flatbreads, calzones, or square Sicilian-style pies. Its 8-pound weight is manageable for packing in vehicle storage crates, provided your grill surface measures at least 17 inches across to respect the required perimeter clearance. On circular charcoal cookers with steep dome lids, however, square corners can touch the grill lid, making a circular model a more seamless fit for round cooking chambers.

See it on Amazon

No. 4 of 6 · Unicook

Unicook 15″ Round Pizza Stone for Portable Grills

9.4/10 Our score

Unicook 15" Round Pizza Stone
Unicook 15″ Round Pizza Stone

Best for: Campers needing balanced round grill capacity

What the listing says

  • Durable Construction Unicook pizza stone is made of Cordierite, sintered in 2100°F kiln for hours, no odor under proper use.
  • Secret of Super Crisp Crust Pizza Full of invisible micro-pores which draw out moisture from dough, distribute heat evenly for optimal cooking,…
  • Multi-functional Pizza Stone 15 inch round pizza stone measures 15" in diameter, golden thickness 0.6"(15mm), weighs up to 6.7 lbs.
  • Plastic Scraper A multi-purpose plastic scraper is a bonus which can be used as a dough cutter or…
  • WARNING Never use soap or detergent to clean the stone!

Pros

  • Manageable 6.7 pound weight
  • Fits standard round grill setups
  • Sintered in 2100°F kiln

Cons

  • Smaller surface than rectangular slabs

The Unicook 15″ Round Pizza Stone is a versatile circular baking slab crafted for outdoor cooks who want ample cooking room without excessive transport weight. Measuring 15 inches in diameter with a thickness of 0.6 inches (15 mm), this unicook 15 inch pizza stone weighs 6.7 pounds, making it lighter and noticeably easier to lift than the 16-inch version. Kiln-sintered cordierite construction gives the stone superior heat endurance up to 1,450 degrees Fahrenheit (787 degrees Celsius) while eliminating odor during intense grilling cycles.

The micro-porous texture across this cordierite baking stone draws moisture away from the bottom crust during cooking, ensuring a crisp result on fresh dough, frozen pies, and rustic flatbreads. Unicook supplies a plastic scraper with the stone for portioning dough and clearing cooled residue from the beige cordierite surface. The manufacturer instructs owners to clean the slab by hand washing with water, avoiding dish soap or grease seasoning to prevent oils from settling inside the microscopic pores and creating smoke.

Campers, tailgaters, and cabin vacationers will appreciate this 15-inch round plate as a practical pizza stone for grill sessions on mid-sized charcoal cookers. At under seven pounds, it packs easily into camp kitchen bins and sits comfortably inside portable barbecue units. Bakers weighing this profile against rectangular models like the unicook pizza stone 15×12 will find circular stones easier to maneuver on round grates, though rectangular options offer more usable length for long artisan baguettes.

See it on Amazon

No. 5 of 6 · Unicook

Unicook 20 x 16 Inch Extra for High Volume Baking

8.2/10 Our score

Unicook 20 x 16 Inch Extra Large Pizza Stone for Oven and Grill, 15.8 Lbs

What the listing says

  • 20 Inch Large Pizza Stone This rectangular baking stone measures 20" x 16" with a 0.6" golden thickness, weighs around 15.8…
  • Even Cooking Baking Stone Unicook oven pizza stone is made of Cordierite and heat resistant up to 1450°F (787°C).
  • Unlock Secret to Crispy Pizzas: The porous structure of the cooking stone absorbs excess moisture from…
  • Versatile Plastic Dough Cutter The Unicook pizza stone for grill comes with a plastic scraper that can be used as…
  • Cleaning and Care: Allow stone to cool down before removing from oven or grill.

The Unicook 20 x 16 Inch Extra large baking stone (model BP20016) is the most expansive slab in the lineup, designed specifically for cooks who demand maximum baking area. Measuring 20 inches in length by 16 inches in width with a 0.6-inch thickness, this rectangular stone weighs 15.8 pounds. It easily accommodates multiple personal pizzas, artisanal batards, or large batches of cookies simultaneously, turning spacious home kitchen ovens and broad multi-burner grills into high-capacity baking surfaces.

Made from high-density cordierite, this unicook pizza stone withstands temperatures up to 1,450 degrees Fahrenheit (787 degrees Celsius) with outstanding heat retention. The massive thermal mass minimizes temperature drops when opening oven doors, delivering consistent heat that eliminates hot spots, uncooked centers, and charred edges. Unicook equips this stone with a plastic dough cutter and scraper for handling raw dough and cleaning the cooled surface. The slab features a reversible construction, allowing use on either face, and cleans with water and a damp cloth without detergents.

This extra-large stone is built for home entertainers managing large group dinners and grillers with substantial outdoor barbecue stations. Due to its 15.8-pound weight and 20-by-16-inch footprint, it is not practical for mobile camping trips, compact camper trailers, or small portable stoves. Travelers who need a mobile setup should keep this substantial deck stationed in their primary kitchen and rely on a lighter model for mobile cooking adventures.

See it on Amazon

No. 6 of 6 · Unicook

Unicook 12″x12″ Square Pizza Stone for Compact Travel

8.4/10 Our score

Unicook 12"x12" Square Pizza Stone for Oven Grill, Cordierite Baking Stone

Best for: Portable pizza ovens and camp cooktops

What the listing says

  • 12X12 Pizza Stone for Oven: The Unicook square pizza stone measures 12"x12".
  • Even Baking The baking stone for oven is made of high-quality Cordierite and withstands temperatures up to 1,450°F (787°C).
  • The Secret to Crispy Pizza: The special porous structure of the pizza stone for grill effectively…
  • Versatile Baking Stone Perfect not just for fresh&frozen pizza, but also for bread, cookies, pies, calzones, and more.
  • Cleaning and Care: Remove excess food with the included scraper, and hand wash the cooled stone with warm water.

Pros

  • Lightweight 2.4 kilogram build
  • Fits Ninja and Cuisinart ovens
  • Smooth reversible surface

Cons

  • Limited to single personal sized pizzas

The Unicook 12″x12″ Square Pizza Stone (model BP12012) is the most compact baking plate in the brand’s catalog, purpose-built for portable tabletop pizza ovens, small recreational vehicle ranges, and tight camp setups. Measuring 12 inches by 12 inches with a thickness of 0.6 inches, this square stone weighs just 2.4 kilograms (approximately 5.3 pounds). Unicook specifically notes compatibility with popular tabletop pizza ovens including the Ninja MO201 and OO101, Cuisinart CPZ-120, Vevor, and Big Horn 12-inch models.

Despite its modest scale, this stone features the same cordierite build and 1,450-degree Fahrenheit (787 degrees Celsius) maximum temperature threshold as the largest stones in the series. The porous surface structure wicks away moisture from dough to produce crisp crusts on personal pizzas, flatbreads, cookies, and calzones. Unicook includes a multi-purpose plastic dough scraper for dough manipulation and post-bake maintenance. The reversible smooth surface can be flipped as needed, and the listing notes that natural cosmetic discoloration over extended use is expected and does not impair function.

For minimalist campers, overlanders, and solo travelers who prioritize light pack weight and small storage footprints, this 12-inch slab is the easiest to transport. Shoppers researching appliances like a cuisinart pizza stone will find this square unit acts as a direct replacement stone for 12-inch portable ovens. While it yields to larger rectangular and circular models when feeding large crowds, its travel-friendly dimensions and light weight make it unbeatable for portable outdoor cooking.

See it on Amazon

Before you choose

How to Choose the Right Unicook Pizza Stone

Selecting the best Unicook cordierite pizza stone depends on matching your cooking appliance dimensions with your packing, storage, and travel needs. Before purchasing, measure the interior width and depth of your oven rack or grill grate. Unicook emphasizes leaving at least a one-inch air gap on all sides of the stone. This gap guarantees unrestricted convective airflow around the cooking chamber, preventing hot spots and protecting appliance heating elements or gas burner mechanisms from concentrated heat buildup.

Profile shape determines how effectively you utilize the available cooking grate. Round stones, such as the 15-inch and 16-inch models, align naturally with round charcoal kettle grills and kamado ceramic cookers. Their circular profiles prevent sharp corners from bumping against domed kettle lids. Rectangular and square models, such as the 15-inch square and 20-inch wide slabs, provide flat edge-to-edge space suited for square home ovens and rectangular gas barbecue grates, making it easier to bake multiple loaves or calzones side by side.

Weight and transportability are critical factors for campfire cooks and cabin vacationers. While the expansive 20 x 16 inch slab offers unmatched baking area, its 15.8-pound mass makes it cumbersome to transport in camping totes. In contrast, the 12-inch square stone weighs only 2.4 kilograms, and the 15-inch round plate weighs 6.7 pounds, delivering excellent portability without sacrificing the superior heat retention of kiln-sintered cordierite.

Maintenance routines are identical across the entire Unicook lineup. Every model comes with a plastic scraper and features cordierite construction that should never be seasoned with oil, butter, or cooking grease. Avoid all soaps and detergents, as chemical compounds penetrate the porous surface. Selecting a stone size that you can comfortably lift, clean with water, and air dry ensures your baking gear delivers dependable performance across years of home and campsite cooking.

Questions people ask

FAQ

Can I use a Unicook pizza stone directly over a campfire grill grate?

Yes, Unicook cordierite pizza stones can be placed on a grill grate over charcoal or campfire embers because cordierite withstands temperatures up to 1,450 degrees Fahrenheit (787 degrees Celsius). To prevent thermal shock, always place the stone on the grate while the fire is coming up to temperature rather than setting a cold stone over intense direct heat. Ensure you maintain sufficient perimeter airflow around the stone so the fire draft is not smothered.

How should I clean my Unicook cordierite pizza stone after cooking?

Let the stone cool completely inside the oven or grill before handling. Use the included plastic scraper to remove baked-on cheese, dough, or burnt flour from the surface. Rinse the stone with warm water and wipe it clean with a soft cloth. Never wash cordierite with dish soap or detergent, and never submerge a hot stone in cold water, as thermal shock can crack the material and soap residues will absorb into the pores.

Do Unicook pizza stones require seasoning with oil before first use?

No, you should never season a Unicook cordierite stone with cooking oil, fat, or butter. Unlike cast iron cookware, cordierite is a porous ceramic that absorbs liquids. Applying oil causes grease to sink deep into the microscopic pores, where it decomposes and smokes during future baking sessions, creating foul odors and unwanted flavors.

Why did my Unicook pizza stone develop dark stains after several uses?

Dark stains and surface spotting are normal characteristics of cordierite baking stones. Over repeated cooking sessions, fats, oils, and carbonized flour naturally darken the ceramic surface. This cosmetic patina does not affect baking performance, produce off-putting tastes, or require chemical cleaning.

How much clearance is needed around a Unicook stone inside an oven or grill?

Unicook recommends maintaining at least a one-inch gap around all sides of the stone inside your oven or outdoor grill. This border ensures proper air movement throughout the cooking chamber, allowing heat to circulate evenly over your toppings and dough while preventing heat accumulation beneath the stone.

Prices, specifications and the feature lines above are read from the product listing and can change without notice. Scores are out of 10, based on listed specifications and buyer feedback; nothing on this page is written from handling the product.

More in Kitchen & Cooking