How to Build a Fireplace Pit Using Fire Bricks?

Nancy Thigpen
9 min readMay 11, 2021

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Fire pits at the garden are wildly popular among homeowners, and there’s a tremendous reason behind this popularity. No other feeling compares to the one you are feeling while sitting next to a snapping fire bringing together everyone.

How to Build a Fireplace Pit Using Fire Bricks?

Sure, you’ll just dig a hole in your garden, place some bricks and stones, and lightweight a fireplace. However, if you double the investment, you and your family can construct and luxuriate in yourself a gorgeous brick DIY Fire pit. To create a fireplace pit you ought to also think about using eco-friendly and recycled fire bricks to limit the utilization of your financial resources and reduce the general expenses.

Brick pit In Your Garden

Fire pits within the garden are one of the foremost popular features of all landscaping. Not only are they stylish but also practical and supply an area to collect together outdoors.

Brick pit In Your Garden

Fire bricks are often want to create enticing and fully functional fire pits in your garden.

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Ideally, a fireplace pit is installed on an outsized, elevated area a minimum of 8 metres faraway from a house or tree, utilising fireproof material.

Brick fire pits are often built above or underneath the bottom. The bricks act more sort of like a fire ring in an overflowing brick pit, holding burning logs in situ. Fire brick is safe to use during a pit above ground. Usually, these bricks are fired up to 1400o C and may endure the impact of fires, so it is a safe construction material to use.

Build an outsized pit, and you will always be ready to host large groups, whether it’s buddies, relatives, or neighbors. Perhaps you’d just want to create a fireplace pit that’s a complete focus, attracting focus by its scale. Once you finally install a fireplace pit, go big, and your back garden will undoubtedly be the talk about the neighborhood. Discover some recommendations on the way to design an enormous pit. Let’s start.

DIY Fire pit

1. Consider the Neighbours

Check that there are not any utilities — electric cables, gas pipes, water pipes or drain pipes buried under the proposed site of the firepit.

Consider how the dominant winds are blowing across your garden. Don’t site the patio pit upwind in order that the smoke doesn’t fly into your house or into the neighbour’s garden.

2. Mark the situation for the hearth Pit

The first move in building a fireplace pit is to filter out a pre-determined location for the bottom within the garden. The below are the measurements for a medium-sized pit.

Mark the situation for the hearth Pit

A one metre diameter pit provides enough space and holds us near enough to speak. You’ll use two concrete type tubes to render the measurement of the opening and pour the screed into it for solidifications and for the bottom.

You can easily create shapes by screwing sheets of 3mm plywood together. Hack a 2.4m x 1.2m sheet into four 300mm wide strips. Carefully fold and bolt two different strips. These joined strips will find yourself creating a circle of 1 meter in diameter. Use the remaining strips within the creations of a circle of 1.2 meters in diameter.

Place the broader form in situ and mark it with the assistance of some paint for identification afterward. Next, make a hole that’s quite 200mm thorough and 75mm bigger than the shape.

3. Market Fire Pit Area Leveling

Shovel the dirt bent 200mm depth for your foundation pit. Don’t damage the dirt that lies underneath it. Even the bottom of Hell by leveling it. Get obviate any abnormal or high places within the pit by leveling them with the assistance of a rake. This is often quite helpful because the soil beneath it won’t be loosened. Compact the bottom with a hand tamper.

4. Make the bottom with Robust Footing

The foundation should be created inside a gentle framework for the walls to avoid crumbling of the edges because the earth changes with time.

Mix up the heatproof screed and use it to fill between the 2 wooden formers. Stake them if you’re using hardboard types, in order that they are smooth. If the previously created forms aren’t quite even, you ought to fix it, leveling everything by striking within the odd spots and smoothening out the layers.

5. Rebar isn’t Recommended for the inspiration

It is not an honest idea to strengthen the inspiration material with metal rods or the likes of because they’re going to expand with the warmth far more than the screed material and cause it to crack.

6. Finalise the Footing

Pour the leftover screed and pound the tubes softly with a mallet. confirm that the underlying concrete blend is evenly distributed.

Recheck the peak, hammer down the forms if appropriate, and smooth the footer, if required. You ought to allow the screed to dry for a couple of days before removing the forms from round the sides of Hell.

Standard clay bricks can crumble when exposed to extreme heat, so you ought to consider building the walls of your Fire pit using fire bricks (also referred to as “refractory” bricks).

Fire brick may be a thick brick that’s kilned to face up to high temperatures. It’s bigger, denser, and broader than regular bricks.

Fire brick is more expensive; however, it’ll withstand frequent flames.

As fire bricks are thicker than normal bricks, it’s harder to interrupt them than the regular ones. “Soldiering” the brick minimizes the quantity of separating and allows easy fitting of the pit’s curve.

You will want to interrupt and split four fire bricks, which you’ll be using to end the development of your Fire pit. These bricks are going to be utilized in front of every other to make oxygen holes for the hearth. Upon breaking the hearth bricks, lay them on top of the bottom.

Manually recheck and readjust the gaps between the bricks. This may be helpful in splitting the last round of bricks for straightforward fitting. Mark every brick’s position for straightforward identification.

7. Cement the Brick

Fire brick is usually cemented with the assistance of powerful outdoor oven cement that’s created for projects like this. This cement is sort of unlike standard masonry mortar. Outdoor oven cement may be a pre-mixed powder and you only mix with water.

Lay a skinny layer of cement before placing your first brick on the footer. Move round the sides during a loop, testing the extent as you lay down the cement to butter the bricks with ease.

8. Make Air Holes for Ventilation

Leave gaps within the pit at four opposing stages, then conceal them with the previously split bricks. Some gaps are literally quite necessary as they’re wont to feed the hearth with air. Place half bricks up while the cement remains drying and slowly setting into place.

9. Finish the Walls of Your Fire pit

You can face the surface of the hearth pit with any quite decorative brick or stone as these materials won’t inherit contact with the hearth.

Finish the Walls of Your Fire pit

The disparity between your firebrick height and face bricks’ overall height will determine the gap between your mortar layers. Lay the face brick, indicating where the respective face brick will be available contact with the hearth brick for rendering the ultimate round of face brick up level with the previously installed and cemented firebricks.

10. Split Bricks

Keep your fingertips below the brick’s top edge as you split them. You would like to separate 80 bricks into half to make your Fire pit. Use an honest tap (strong tap for splitting fire bricks) on the fringes to simply break them in half.

11. Use Split Face Bricks

To hold the mortar joints at a good distance between courses, put a two to 3 inches thick mortar bed on top of the footing first.

Let it slowly found out and flatten the sides. Now, set the previously split face bricks to make the outer layering.

Check every course stage, and constantly monitor the extent of the bricks. Stagger the knees between the shifts to stay yourself active.

12. Flatten and Smooth the joints

Smooth the joints before the cement dry up completely after you’ve got completed each bit of face brick. Smoothing the joints will make sure that the bricks set into an appropriate place before the cement completely dries up and locks everything in situ.

Striking adds a clean, polished look to the board. Leave the holes open while you mortar through the face brick portion. Attempt to keep every layer of bricks in level as you progress forward.

13. Finalise the highest

Mortar the tops of the wall. Use regular face tile placed on rock bottom so as to finalize the development of Hell with a corresponding “row-lock” hat.

Forty face bricks are required during this phase. These bricks will:

  • Help defend the joints withstand water damage of any kind
  • Contain and manage any sparks
  • Offer a cushty place for putting your feet.

Work at a time, with ten to 12 bricks. Assail a 10mm mortar bed and spread the bricks atop the flooring during a level. Then, put the mortar mix on the side of every brick and push it in. You’ll use brick, except for a cleaner or a smoother look, try choosing other materials with a far better finish and texture.

14. Fill within the Gaps

To fill any gaps, add more mortar to the joints as require or appropriate. Frequently check the extent and keep readjusting the gaps between the various layers.

Leave a 25mm internal overhang enabling rain to run out of the hearth pit. Once all of the bricks are mortared and levelled, tap the joints with a jointer for a gorgeous and level look.

15. land up the hearth Pit and begin Enjoying

Allow the firepit ten days to completely cure before you light a fireplace and begin enjoying the newly created pit in your garden. Dispense a few of inches of shingle into the pit’s drainage surface, and you’re primed for your delicious roast.

More Suggestions When Building a Brick fire pit

Large outdoor fireplaces and fire pits are usually permanent structures of the landscape. They will be built from a spread of materials, including local stone, mortar, fire-rated pavers, or concrete. Some homeowners pick the surface with fire-rated brick, river rock, or stacked stones during a pit for pits built from concrete.

Be aware that this hearth pit would inevitably become a focus in your garden, so take care once you pick the situation for your large pit.

Move the hearth pit faraway from this location if you have already got an outdoor deck or area, and make your pit during a different place. Consider installing a route to link the 2 regions, employing a hardscape material that separates the 2 spaces from a design perspective. Confirm there’s a well-lit road between pit and patio.

More Suggestions When Building a Brick fire pit

A fire pit’s diameter includes the world where the hearth is going to be erected plus the walls’ width. Usually, an outsized pit measures a minimum of 1.4m across and typically requires a touch more to accommodate fireside seating.

Moreover, the peak of a fireplace pit round the wall depends on how you mean to use it. A good coping pit can pull double-duty as a cushty footrest, a hearth seat, or as an area to take a seat for drinks or food.

Construct it 300mm high, to use a fireplace pit wall as a footrest. That height easily suits to most traditional sorts of patio furniture. Do your own tests to seek out the right height if you would like to make footrest near your Fire pit.

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Nancy Thigpen
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Hey! I am Nancy Thigpen. I am a Blogger.