how do you build a foundation for an outdoor fireplace

How do you build a foundation for an outdoor fireplace?

• Step 1: Create a Design. Use tape measure to determine width, length, depth and height of fireplace.
• Step 2: Create a Concrete Foundation.
• Step 3: Lay Concrete.
• Step 4: Build a Façade Frame.
• Step 5: Attach Cement Board.
• Step 6: Add Mortar.
• Step 7: Install Stacked Stone.
• Step 8: Attach Chimney Cap.

Full Answer

How do I build an outdoor fireplace?

To build an outdoor fireplace, make a detailed plan of what the fireplace will be for, where it will go, and what will go around it.

Do I need a foundation for an outside fireplace?

In the Northeast, would a foundation be required for a outside fireplace? Total hieght 12′? Or could this just be put on a slab? 42 inches is required frost footing, so a 42 inch deep foundation seems excessive. You need either a rat wall or a full frost foundation.

Can I build a fireplace from a kit?

Consider building your fireplace from a kit. Fireplace kits take much of the guesswork out the construction process. Most feature modular designs, complete instruction manuals, and can be built in just a few days. They also meet critical specifications on chimney and firebox construction. You will have buy stone finishing separately. Thanks!

How do you build a fire brick wall?

Place a fire brick immediately to the left and to the right of the bisecting line, flush against the face of the firebox, leaving about 1⁄4 inch (0.6 cm) space in between the two. Lay one brick immediately above the two bricks, offsetting it by placing it exactly in the middle. Above it, lay down two bricks in the same pattern as originally placed.

Does an outdoor fireplace need a foundation?

A larger fireplace may require a structural footing, which involves pouring a concrete footing below frost level (the depth to which it freezes in your area). Depending on the size of your fireplace, an existing patio may not be sufficient to support the weight.

How do you build an outdoor fireplace base?

2:4811:22Building An Outdoor Fireplace (with tips from a professional mason!)YouTubeStart of suggested clipEnd of suggested clipSo that it slanted forward and used block and brick to temporarily hold those fire bricks in placeMoreSo that it slanted forward and used block and brick to temporarily hold those fire bricks in place as the mortar. Set he spread sand on the bottom of the firebox.

How do you build a foundation for a fireplace?

1:047:23Concrete And Brick Foundation With Fireplace For 1923 Home Building ...YouTubeStart of suggested clipEnd of suggested clipThat's going to be six inches deep. And about 20 inches wide. And it's going to go around theMoreThat's going to be six inches deep. And about 20 inches wide. And it's going to go around the perimeter. And of course. Everything. That is six inches deep is going to be used for the fireplace.

How do you build a concrete slab for an outdoor fireplace?

0:4015:52Building a backyard fireplace | Outdoor Fire Pit - YouTubeYouTubeStart of suggested clipEnd of suggested clipThis. Project was inspired by my good friends Austin Kelsey who had a concrete pad put in theirMoreThis. Project was inspired by my good friends Austin Kelsey who had a concrete pad put in their backyard last summer they'd use it all the time.

How far does an outdoor fireplace need to be from the house?

Choose the location with safety in mind. Your patio fireplace should be located at least 10 feet away from structures and flammable materials. When this is not possible, such as in the case of a patio with a wood cover or a mature tree growing nearby, you will need to take additional precautions to reduce fire risks.

Can you build an outdoor fireplace with cinder blocks?

Yes, you can! Cinder blocks are a popular material for building outdoor fireplaces because they're inexpensive and easy to work with.

How thick should the footing be for a fireplace?

12 inchesFootings for masonry fireplaces and their chimneys shall be constructed of reinforced concrete or solid masonry at least 12 inches (305 mm) thick and shall extend at least 6 inches (152 mm) beyond the face of the fireplace or foundation wall on all sides.2111.2 Footings and foundations. - American Legal Publishing's Code ...https://codelibrary.amlegal.com › latest › NYCadminhttps://codelibrary.amlegal.com › latest › NYCadminSearch for: How thick should the footing be for a fireplace?

How thick should a concrete slab be for an outdoor fireplace?

4-6 inches thickPour a Concrete Pad The concrete pad for your project should typically be 4-6 inches thick, 3-4 feet deep, and 4-5 feet wide.How to Make an Outdoor Fireplace in 4 Steps - FireRock Building Materialshttps://love.firerock.us › blog › how-to-make-an-outdoor-...https://love.firerock.us › blog › how-to-make-an-outdoor-...Search for: How thick should a concrete slab be for an outdoor fireplace?

How deep should an outdoor fireplace be?

Outdoor fireplaces can be as small as four feet tall, three feet wide and two feet deep. While larger fireplaces, complete with mantel and hearth, built-in seating and wood storage boxes, can be as large as 15 feet tall, 15 feet wide and 4 feet deep....Outdoor Fireplace Size.Firebox Size (inches)Minimum Chimney Height48x32x1816.5'6 more rowsOutdoor Fireplace Size and Scale - Landscaping Networkhttps://www.landscapingnetwork.com › outdoor-fireplacehttps://www.landscapingnetwork.com › outdoor-fireplaceSearch for: How deep should an outdoor fireplace be?

Where should I start laying foundational blocks?

As you start to lay your foundational blocks, I recommend you begin from the center because the middle of the base aligns at the middle of a full block helping you center your fireplace for optimal placement. Note: As you construct your kit, be sure to keep it all level, square, and plumb.

How far from each side of a fireplace should you racking the block?

As you continue building the smoke chamber, you will keep the back wall of the fireplace plumb while racking the block in approximately 2” from each side. Always use a straight edge to keep your runs straight.

What is an isolated pad on a fireplace?

The isolated pad will minimize or eliminate cracking of your main pad due to the constant weight of the fireplace .

What is a firebox?

The firebox is the heart of your fireplace. In essence it is exactly what it is called- a box. Be sure to keep your box flush, level and plumb. Using a Big Ass Square will definitely help. Start building from this outside corner. Keep your structure flush, level, and plumb.

What is a fire brick?

The instructions will guide you every step of the way. The fire brick are an additional layer of masonry that keeps fire from attacking your structure. All the firebrick are included in the kit.

How far apart should you rack a smoke chamber?

As you begin to build the smoke chamber, rack the block in approximately 2” from each side and about 4” from the front. Due to the tumbled nature of the blocks, it might be difficult to get a good measurement without a special jig. You can make a jig, or just use the finger method as shown below.

Do you need expansion joints around a fireplace?

If you are building on a pre-existing concrete pad, or one much larger than your fireplace footprint, be sure to form or cut expansion joints around the fireplace. Expansion joints will ensure that the weight of your structure does not crack your concrete pad.

How do I set up a foundation?

Set up the foundation first by digging a trench and using a plate compactor to shore up the foundation. Mix and pour the cement and allow it to set for at least 24 hours, if not longer. Check with local building authorities to see how low you'll need to dig your foundation.

How do I put mortar on a fireplace?

Apply mortar to the back of the stones and stick them onto the cinder blocks. Use spacers to separate stones, filling in the area between them with mortar. At perfect 90 degree corners, avoid continuous joints that travel all the way down the length of the fireplace. Instead, tooth them.

How far should a hearthstone be from the firebox?

If the firebox opening is larger than 6 square ft. (0.56 m 2 ), extend the hearthstone to at least 20 inches (51 cm) in front and at least 12 inches (30 cm) on either side.

What is the best base for a fireplace?

Base: A reinforced concrete base is the best base you can have for a fireplace. Custom fireplaces are usually heavier than prefab fireplaces, meaning your base needs to be stronger and thicker than ordinary. Firebox: Your firebox will house the fire, and should sport fire brick if custom built.

What is an open hearth?

A cozy open hearth provides an intimate setting for small groups. If you throw large parties, consider building a fireplace with two open ends to accommodate more people. A fire pit provides views from all vantage points and the feel of a campfire setting.

How deep should a concrete foundation be?

Some locations will need foundations of concrete only 6 inches (15.2 cm) deep, while others will need to be in excess of 1 foot (0.3 m). Note: Concrete and mortar, although similar, are different bonding agents and should be used differently.

Can you build a firebox yourself?

Firebox: Your firebox will house the fire, and should sport fire brick if custom built. On the other hand, you can purchase a firebox (choices of material include sta inless steel and other types of brick) if you don't want to build it yourself.

How much does it cost to build an open pit fireplace?

If you do the work yourself, you could spend as little as $150 to $200 for stackable cinder-bricks, a fireproof pit bowl, a grate, and a domed cover.

What materials are used in a fireplace?

All fireplaces must be constructed of heat-safe materials, which usually mean brick, block, concrete, or stone for the exterior. Depending on the design, the interior frame of the fireplace may include cinder blocks for support.

What is the firebox in a fireplace?

The firebox (where the flames actually burn ) must be constructed from steel or fire-rated bricks that will withstand extreme heat. A traditional fireplace with a chimney will require a fire-rated flue pipe that leads from the top of the firebox to the top of the chimney.

How to check if your home insurance covers an outdoor fireplace?

Place a call to your insurance agent to see if your existing homeowners’ policy will cover any damages caused by an outdoor fireplace. Make another call to DigSafe (811), which will prompt your local utility companies to check the locations of their buried lines so you don’t accidentally disturb them during construction.

How much does a mason charge for a fireplace?

A professional mason may charge anywhere from $5,000 to $12,000, or more, for a similar brick or stone fireplace depending on size, material choice, and design details. If you want a large fireplace and you’re not DIY-inclined, this is a project best left to the pros. Advertisement.

What is the difference between a firepit and an outdoor fireplace?

However, a firepit gives your yard more of a campfire and also allows for you to see your fire from all directions, and not just the direction the grate is facing.

What is the most important part of a fireplace?

The firebox is the box that will hold your fire, and it is the most important part of the fireplace. The kit will have an instruction on how to do this, but you basically build a box from the stones on the outside and then line the interior with firebrick to keep things heat resistant. Finally, you will place a lintel block on top of this and then add your angle iron.

Is an outdoor fireplace large?

Well, first, an outdoor fireplace is very large. Space is certainly something that you will need to take into consideration when choosing to build one. Additionally, you will want to pick a fireplace style that will match your home.

Can you use an electric fireplace outdoors?

Outdoor fireplaces don’t need to only be wood burning. If you like the ease or the idea of an electric fireplace, then there are special electric fireplaces that can be used outdoors with no trouble at all. Just make sure the fireplace is rated for outdoor use and you should be good to go!

Do you need a fireplace kit?

Fireplace kits do make the entire process easier. They provide everything you need to build a fireplace in one simple kit, along with instructions and diagrams to make everything much easier to use. If building an outdoor fireplace is your first DIY project, then you should use a kit, if you are confident you know what to do, then don’t.

Do you need to level bricks to put a cap on a chimney?

Always make sure to level your bricks and make sure everything stays straight though, and then you can add your cap once the chimney is done. The cap helps keep things out of your chimney, while not impairing the smoke flow, so it’s a good investment to have.

Can you build a fireplace on concrete?

If you are building your fireplace on concrete, then you will need some aggregate soil to give it a nice and sturdy base before you pour the concrete. You also need to make sure that the concrete is reinforced enough to take the weight of the fireplace once you add it on. Additionally, you will also need to know the state and local fire codes ...

Create A Concrete Foundation

Next, you need to create a concrete foundation. Although most modern homes come with separate spaces for a stone fireplace, since we are talking about installing an outdoor one, you might have to do some digging and pouring.

Lay Concrete

For this step, you are going to need the help of a friend or family member. Referring to the fireplace design, lay down some cinder blocks while adding a mortar layer between each block. Leave the chimney top for ventilation.

Build A Frame

Then again, referring to the dimensions you noted earlier, use a chainsaw to cut 2×4 size lumber. Then, use nails to assemble the lumbers. If nails are not an option, use screws with a drill. Make sure to wear protective gear when using electric machines. Chop saw and drilling machines can prove fatal in case of an accident.

Codes and Considerations

See all 5 steps on www.wikihow.com

Design Decisions

Material Matters

Cost Considerations

Diy Directives