If you’ve been wondering how to build a brick pizza oven for your garden, you’re not alone.
A DIY pizza oven has become one of the UK’s most popular outdoor projects in recent years, helping homeowners create everything from outdoor kitchens to dedicated entertaining spaces.
Not only does a brick pizza oven look fantastic, but it also delivers authentic wood-fired cooking that simply can’t be replicated in a conventional oven.
The good news? An outdoor pizza oven build is far more achievable than many people think.
In this step-by-step guide, we’ll explain how to build a brick pizza oven, including the best materials to use, how to create strong foundations and the key mistakes to avoid.
Step 1: Choose The Best Location For Your Brick Pizza Oven
Before starting your outdoor pizza oven build, you’ll need to decide where the oven will sit within your garden.
A good location should:
⦿ Be level and stable
⦿ Allow plenty of ventilation
⦿ Sit safely away from fences and buildings
⦿ Be protected from strong winds where possible
⦿ Leave enough room for seating and food preparation
Many homeowners choose to build their DIY pizza oven alongside a patio or outdoor kitchen area to create a central entertaining space.
It’s important to plan carefully from the beginning, as a brick pizza oven becomes extremely heavy once complete.
Step 2: Choose The Right Bricks
Choosing the correct materials is one of the most important parts of building a brick pizza oven.
For the internal cooking chamber, fire bricks are usually the preferred option because they are designed to handle extremely high temperatures and repeated heating cycles. Traditional clay bricks can sometimes be used for lighter domestic use, although they may not offer the same durability over time.
We’ve also put together this detailed guide If you’re unsure which materials are best for your DIY pizza oven project.
Concrete bricks and blocks should generally be avoided inside the cooking chamber because prolonged heat exposure can lead to cracking and structural damage.
Step 3: Build Strong Foundations
A brick pizza oven is incredibly heavy, so strong foundations are essential.
Most outdoor pizza oven build projects begin with a reinforced concrete slab between 100mm and 150mm thick.
To create the foundation:
1. Mark out the footprint of the oven
2. Dig down to stable ground
3. Add and compact a sub-base
4. Install timber shuttering
5. Pour and level the concrete
Allow the concrete to cure properly before continuing with the build.
Step 4: Construct The Pizza Oven Stand
The stand supports the oven and raises the cooking area to a comfortable height.
Many DIY pizza oven builders use:
⦿ Engineering bricks
⦿ Concrete blocks
⦿ Clay bricks
⦿ Reclaimed bricks
You can also include built-in wood storage beneath the oven if space allows.
Once complete, a reinforced slab is typically added to support the cooking floor.
Step 5: Lay The Cooking Floor
The cooking floor plays a major role in the performance of your brick pizza oven.
Fire bricks are commonly used because they absorb and retain heat extremely well, helping pizzas cook evenly at high temperatures.
Lay the bricks tightly together to create a smooth and level cooking surface.
Taking your time during this stage will make cooking much easier later on.
Step 6: Build The Brick Pizza Oven Dome
The dome is what gives a brick pizza oven its distinctive appearance.
Traditional dome-shaped ovens are designed to circulate and retain heat efficiently, allowing temperatures to rise quickly for authentic wood-fired cooking.
There are several ways to build the dome during your outdoor pizza oven build, including:
⦿ Sand mould methods
⦿ Timber support frames
⦿ Freehand construction
Bricks are gradually laid in angled rings until the dome closes at the top.
Remember to leave space for:
⦿ The oven opening
⦿ Ventilation
⦿ The chimney flue
Step 7: Add Insulation
Good insulation is essential for any DIY pizza oven.
Without proper insulation, heat escapes quickly and the oven becomes less fuel efficient.
Popular insulation materials include:
⦿ Ceramic fibre blankets
⦿ Vermiculite
⦿ Perlite render
⦿ Insulation boards
Insulation helps your brick pizza oven maintain cooking temperatures for longer periods while improving overall performance.
Step 8: Finish The Exterior
Once the structure is complete, you can finish the outside of your DIY pizza oven to suit your garden style.
Popular finishes include:
⦿ Exposed brickwork
⦿ Rendered domes
⦿ Stone cladding
⦿ Decorative brick arches
⦿ Outdoor kitchen surrounds
A finished brick pizza oven can become a real focal point within your outdoor space.
Step 9: Cure The Oven Slowly
One of the most common mistakes during an outdoor pizza oven build is heating the oven too quickly.
Your brick pizza oven needs to dry gradually before reaching full cooking temperatures.
Start with a series of small fires over several days to slowly remove moisture from the bricks and mortar.
Rushing this stage can lead to cracking.
Step 10: Start Cooking
Once cured, your DIY pizza oven is ready to use.
A properly built brick pizza oven can reach temperatures above 400°C, allowing pizzas to cook in just a couple of minutes.
As well as pizza, your oven can also be used for:
⦿ Flatbreads
⦿ Roasted vegetables
⦿ Meat dishes
⦿ Fish
⦿ Slow-cooked meals
And of course, it creates an impressive feature within any UK garden.
Common DIY Pizza Oven Mistakes To Avoid
If this is your first outdoor pizza oven build, try to avoid these common mistakes:
⦿ Using unsuitable bricks
⦿ Skipping insulation
⦿ Weak foundations
⦿ Rushing the curing process
⦿ Poor ventilation
⦿ Building an oversized oven opening
Proper planning and material selection can make a huge difference to the long-term performance of your brick pizza oven.
Learning how to build a brick pizza oven is a rewarding project that can completely transform your outdoor space.
Whether you’re creating a compact DIY pizza oven or a full outdoor kitchen setup, choosing the right bricks and materials is essential for long-lasting results.
At Brickhunter, we help homeowners, builders and DIY enthusiasts source the right materials for projects of every size. Browse our full range of bricks.
