HomeMade Modern DIY Concrete Fire Pit - wood burning fire pit with grill

This modern concrete fire pit can be built over a weekend and is the center of outdoor entertainment.
It's not a difficult project, but it's time-consuming and labor-intensive.
Concrete fireplaces and fire pits should be built with care.
When exposed directly to a large amount of heat, the moisture inside the concrete expands, causing the concrete to crack and explode in extreme cases.
I line up inside the fire pit with fire bricks and fill the bottom with lava to make sure most of the heat is not in direct contact with the concrete.
I built this fire pit in Southern California, so I don't have to worry about laying the base below the frost line.
If you build a fire pit in a cold climate, I would suggest setting up a sonotube base under each of the four corners. Quikrete 5000 (20-25 Bags)
Quikret®5000 the concrete mixture is commercial
Grading of stone or gravel, sand and cement, designed for higher early strength.
Due to the high strength in the early stage and the low price, this is the concrete mixture recommended for use.
It is perfect for making tables, paving materials, stools and lights, usually at 80-
The pound bag of Home Depot, but 60-
There are also heavy bags.
I used fire bricks from the local brick and stone supply site.
They don't look the most beautiful, but after a few fires they get dark from soot.
Fire bricks are hot.
Anti-cracking, protect the concrete from cracking.
Mortar I mixed my own mortar with Portland cement, mortar clay and sand.
I went along the instructions on the mortar clay bag.
The rebar I bought
Cut steel bars in 12 "and 36" sections.
I should buy 18 long sections for the vertical industry.
I suggest using the combination of pre-
Cut steel bars with a diameter of 3/8.
Use the long parts of 18 "vertical long parts and 36" horizontal parts.
Make sure you get the vertical pieces through the gravel into the ground so there are at least 3 pieces at both ends.
5 "below the top of the wood shape.
Connect the horizontal block to the vertical block so that the horizontal block is embedded in each layer of concrete.
This steel frame will make the different concrete layers firmly together.
Quikrete 3/4 "gravel I used about 7 bags of foundation krete 3/4" gravel as the base layer.
Lava Rock I used two 5 gallon barrels full of lava rock, which I purchased from the masonry supply yard.
Lava is hot.
Resistant, not cracked or broken.
Template: 2x4 s 2x6 s I used 2x4 s and 2x6 s combined with 2.
5 "make the deck screws for the template panel. L-
I use L-
Stand in the corner to connect the panel.
I recommend 6 "L-brackets.
The Eugenics decree V Cordless drillobi decree v circular SawRYOBI month "sliding composite slashsaw LaserClick here to download the specific plan for the fire pit.
The outer box will consist of 4 43 panels. 5" long.
Each panel consists of 2x4 and 2x6 pieces.
I cut them with a round saw, but a composite herringbone saw would make the task easier.
If you do use a round saw, I suggest you use a speed square to make sure your cut is good and straight. I used 6" L-
Stand in the corner to connect the panel. I used 2.
5 "deck screws and 15" long pieces of 2x4, making 4 large panels for the outer frame.
The inner frame consists of 2 23 "long" panels and 2 20 "long" panels.
Make sure L-
The bracket on the inner corner of the frame, because the bracket outside will be buried in concrete.
Place the frame in the desired position and mark it around the external perimeter for about 6 ".
Since I built a fire pit in Southern California, I don't have to worry about gaining a foothold below the frost drop line.
If you are building in a cold climate, I suggest you lay the foundation under the frost line in every corner.
I dug about 8 "down and flattened and compacted the soil at the bottom of the hole with a die.
I spread about 3.
5 The "Quikrete 3/4" gravel at the bottom of the hole and raze it as much as possible before stamping.
Place the frame in the appropriate position and measure the distance between the internal frame and the external frame to ensure that the internal frame is correctly centered.
Once the frame is in the right position, lock them in place using some scrap 2x3 s and deck screws.
Then use the height of 6 feet to make sure the template is horizontal.
I used a rubber mallet to knock down the high angle and make it even.
I drove the steel bars through the gravel into the ground.
I should use longer bars instead of the short 12 "long vertical section.
I connected about 2 "3 long pieces horizontally from the bottom of the hole.
I started with 3.
5 "deep pouring of concrete that will serve as the foundation of the fire pit.
I mixed the quikrit 5000 with a push car and shoveled it in place.
Renting a blender will make it a lot easier, but I like this exercise.
Let the concrete be maintained for at least 20 hours before laying the bricks.
Once the concrete has been maintained for at least 20 hours, ready to lay the fire brick.
I mix the mortar according to the instructions on the mortar clay bag.
I started using a mortar base of about 1/2 thick around the inner perimeter of the template, and then placed a brick at a time.
Before placing the brick, I lay the mortar on the side of the brick so they stick together.
After the mortar is solidified, stir 5 inch of the concrete.
I can pour it all out right away but it's exhausting to stir the concrete by hand so that you can remove any additional support that might hinder the ironing before making the last pour.
I have also added additional steel bars since my 12 already covered bars.
I want to make sure the concrete layers are combined together.
After about 20 hours of concrete maintenance for the previous layer, I poured the last layer of concrete.
I pushed the concrete to all corners with a hoe and vibrated the concrete with my hands with wooden piles.
I use a flat piece of wood to iron the top of the concrete.
Work the ironing board back and forth to level the concrete.
I had the concrete set for about 30 minutes and then applied the cream to the surface with a metal float.
I spent about 10-
Work on the ground for 15 minutes.
It took about an hour to wait for the float, and then wiped the concrete with a steel spatula.
I did my best to make the surface as smooth and flat as possible.
Not perfect but looks great!
I covered the concrete with some planks and sheets to make sure nothing came into contact with the damp concrete.
I use the garden hose to keep the concrete moist for 48 hours.
It is easy to remove the outer frame.
The internal frame needs some cutting with a round saw.
I should have done some diagonal cutting on the inner panel beforehand, but it's not a big deal anyway.
After about 20 minutes with a crowbar, hammer and saw, I took out the wood.
Then I sprayed the concrete down with a hose to clean it.
I poured two barrels of lava into the pit.
This creates a good one.
Used to start the fire and cover the drainage surface of 3.
5 "foundation layer of concrete.
I would suggest getting the concrete cured at least 30 days before the fire is lit.
I also suggest not to let the fire burn for more than 2 hours in the first 3 months.
It takes a long time for the concrete to fully solidify and you don't want the moisture to expand inside and cause cracking.
Be responsible and do not create huge fires.
Concrete is protected by fire-proof bricks and lava rocks, but concrete can crack if you make huge bonfires and let them burn for hours in a row.
Good luck making your own concrete fire pit, please give @ benuyeda or ben @ homemade-modern. com.
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