The Ooni Karu 12 dimensions are 80 cm by 40 cm (31.5 by 15.8 inches), and the oven weighs 12 kg (26.5 lb), according to Ooni’s official product page as of November 5, 2026. The Karu 12 is a portable pizza oven built around a 12-inch cooking stone. Ooni also lists an unboxed size of 30 x 15 x 31 inches, but it does not label which figure is height, so measure your space before you buy.
Ooni Karu 12 Dimensions at a Glance
The Ooni Karu 12 has a footprint of 80 cm by 40 cm and a weight of 12 kg, with a stone sized for a 12-inch pizza. The table below lists every spec that Ooni’s official Karu 12 page or its Essentials Guide states, along with the figures it leaves unlabelled.
| Spec | Ooni Karu 12 |
|---|---|
| Footprint (assembled) | 80 cm x 40 cm (31.5 in x 15.8 in) |
| Weight | 12 kg (26.5 lb) |
| Cooking stone | 15 mm cordierite, for a 12-inch Neapolitan pizza |
| Heat-up | 950 F (500 C) in about 15 minutes |
| Fuel | Wood, charcoal, or gas with the Gas Burner (sold separately) |
| Height | Not labelled (unboxed size listed as 30 x 15 x 31 in) |
| Packaged or shipping size | Not published |
Footprint and Weight of the Ooni Karu 12
The Ooni Karu 12 dimensions give a footprint of 80 cm by 40 cm, and the oven weighs 12 kg (26.5 lb). Ooni’s official product page gives the same figures on its EU site, so they are the manufacturer’s own numbers. Its specification table also shows an unboxed size of 30 x 15 x 31 inches (about 76 x 38 x 79 cm).
The 30 x 15 x 31 inch unboxed figure and the 80 cm by 40 cm footprint do not obviously match, because Ooni does not say which side each number describes or whether the footprint counts the chimney and legs. That matters when you plan a route through a gate, a doorway or a car boot. If you need the exact box size for a delivery window, ask Ooni support before you order.
At 12 kg, the oven is a two-hand lift, and it is wise to plan the route before you move it. Keep the Ooni Karu 12 dimensions and weight in mind when you plan the move. Ooni’s manual says to wait at least one hour after the fire goes out before you move or clean the oven, so schedule the move for when the oven is fully cool and empty. To compare sizes, the Ooni Fyra 12 dimensions guide lists length, width, height and weight for another Ooni oven.
Cooking Surface: The 12-Inch Stone
Of all the Ooni Karu 12 dimensions, the stone matters most for pizza. The stone baking board is a 15 mm cordierite stone made for a 12-inch Neapolitan pizza. Ooni says the Karu 12 heats to 950 F (500 C) in about 15 minutes, which is the figure that matters most when you judge how much cooking space you get.
Ooni’s Karu 12 pages describe the stone as sized for a 12-inch pizza, but they do not give its exact length and width. For a pizza that size, the manual recommends aiming for about 752 F (400 C) in the middle of the stone. You can check that with Ooni’s infrared thermometer, which the manual names as the tool for reading stone temperature. For broader heat ranges, see our pizza oven temperature guide.
The stone also sets the size of tool you need. Ooni says the Karu 12 is compatible with its 12-inch pizza peels or smaller ones, so choose a peel that matches that size range. Check the peel’s blade length against the stone before you buy.
Height and Packaged Size: What Ooni Leaves Unlabelled
Ooni’s official Karu 12 page lists a footprint, a weight and an unboxed size of 30 x 15 x 31 inches. The Ooni Karu 12 dimensions it publishes are still incomplete, because the unboxed figures carry no labels for width, depth and height, and no packaged (shipping box) size is given. The EU page gives the same footprint and weight. Until Ooni labels those figures, measure the oven yourself before you decide where it will sit.
To measure the height part of the Ooni Karu 12 dimensions, stand the oven on a level surface with the legs fully extended, which the manual says is required before you fire it. Measure from the floor to the highest point of the body, and include the chimney cap if it sits on top when the oven is in use. Write down the number and compare it with the clearance above your table or under a cover.
If you need the packaged size for a delivery or a storage cupboard, contact Ooni at support.ooni.com. Support can confirm the box dimensions for your region, which may differ between countries.
Space You Need Around the Oven
The Ooni Karu 12 dimensions cover only the footprint, which is not the whole space you need. Ooni’s manual asks for at least 3 feet (1 metre) of space around the oven when you fire it with solid fuel, so that air can reach the fire.
- Keep at least 3 feet (1 metre) clear on all sides when firing wood or charcoal.
- Use the Karu 12 outdoors only, and do not fire it in high winds.
- Remove the chimney cap and keep the door on when you fire with solid fuel, as the manual describes for best performance.
- Keep children and pets at a safe distance, because the outer shell gets hot.
A balcony or small patio can suit the Ooni Karu 12 dimensions if you can keep that clearance and the surface is stable. Check the clearance around the Ooni Karu 12 dimensions against the balcony rail, the wall and any overhead cover before you buy, and keep hands off the outer shell while it is in use, since the manual warns it gets hot.
Carrying, Covering and Storing the Karu 12
The Ooni Karu 12 dimensions suit an outdoor spot, and the oven can stay outdoors all year. Ooni also sells a waterproof carry cover for moving and protecting it. Ooni recommends storing the oven indoors for long periods without use, especially in harsh weather, and our guide on whether you can leave a pizza oven outside explains the trade-offs.
The carry cover, sized to the Ooni Karu 12 dimensions, is 100% waterproof, has an elasticated edge for a snug fit, and has adjustable straps for moving the oven. Ooni’s manual says the cover keeps the oven safe from the elements, so use it when you move the oven between a patio and a garage.
Clean the stone by running the oven at top temperature, then brush away debris with Ooni’s pizza oven brush once the oven has cooled. Our guide on how to clean a pizza stone covers the details, and the stone is not dishwasher safe, and you should never use water to cool or put out the fire, since the manual says it can cause damage and injury.
How Gas Setup Changes the Setup Space
The Karu 12 can run on propane with the Gas Burner, which Ooni sells separately and which depends on your region. The Ooni Karu 12 dimensions stay the same with gas, but the setup changes, so plan for the parts you remove.
When you cook with gas, remove the chimney and the door. The manual says you can fit the chimney cap onto the oven body to create a seal. Gas can reach roughly 482 to 950 F (250 to 500 C), according to the fuel table in the Essentials Guide.
If you switch from wood or charcoal to gas, let the oven cool fully before you attach the Gas Burner. Check every connection on the propane tank, hose and regulator for leaks before each cook, and see propane pizza oven temperatures for what to expect from gas.
Checklist Before You Buy or Place the Karu 12
Before you buy or move the oven, check the Ooni Karu 12 dimensions against your footprint, clearance and surface. The list below covers the points that the official figures and the manual support.
- Confirm a clear area of at least 80 cm by 40 cm for the footprint.
- Plan for at least 3 feet (1 metre) of open space around the oven for solid fuel.
- Choose a sturdy stone, wood, steel or stainless surface. Plastic and glass are not recommended.
- Measure the height with the legs extended, since Ooni does not label it.
- Confirm the packaged size and delivery details with Ooni support before ordering.
Ooni’s own product page is the most reliable place to check the current Ooni Karu 12 dimensions, because retailers often list different numbers for the same oven. For more detail on the official specs, see Ooni’s Karu 12 product page, and the regional version at Ooni EU’s Karu 12 page.
Frequently Asked Questions
How big is the Ooni Karu 12?
The Ooni Karu 12 dimensions give a footprint of 80 cm by 40 cm (31.5 by 15.8 inches), according to Ooni’s official product page.
How much does the Ooni Karu 12 weigh?
The oven weighs 12 kg (26.5 lb). Ooni’s official page gives the same weight on both its main and EU sites.
What is the Ooni Karu 12 height?
Ooni lists an unboxed size of 30 x 15 x 31 inches among the Ooni Karu 12 dimensions but does not label the height. Measure from the floor to the highest point with the legs fully extended, and check with support.ooni.com if you need a confirmed figure.
Can I use the Karu 12 indoors?
No. Ooni’s manual says the Karu 12 is designed for outdoor use only, and it should not be fired in high winds or left unattended while lit.
Does the Karu 12 need a special table?
For the Ooni Karu 12 dimensions to work in practice, Ooni recommends setting the oven on a sturdy stone, wood, steel or stainless surface, and it offers the Ooni Modular Table range for the job. Plastic and glass surfaces are not recommended.
If your space is tight, measure twice and keep the 3-foot clearance in mind before you buy. Checking the Ooni Karu 12 dimensions this way is the simplest step you can take. A few minutes of measuring now saves the trouble of moving a 12 kg oven back out of a corner later.