How to Build a Fire Pit With Cinder Blocks

Do you want to add a warm, cozy ambiance to your garden or courtyard? A fire pit is the perfect way to make any outdoor area an inviting and enjoyable place for family and friends. And the best news of all – it’s easy to build one with just a few simple supplies!

How to Build a Fire Pit With Cinder Blocks

In this blog post, we’ll discuss how to build a fire pit with cinder blocks. We’ll also cover other important considerations when constructing such a feature, including multi-level arrangements and safety protocols.

Tools and Materials You Will Need to Build a Fire Pit With Cinder Blocks

  1. Cinder blocks
  2. Masonry adhesive
  3. Trowel or putty knife
  4. Level
  5. Gravel and sand (optional)
  6. Lava rocks (optional)
  7. Fire-resistant fabric (optional)
  8. Fire pit table kit (optional)

Step by Step Guidelines on How to Build a Fire Pit With Cinder Blocks

Step 1: Lay Out the Base of Your Fire Pit

The first step is to lay out the foundation for your firepit. Start by choosing an area that is at least 10 feet away from any flammable materials or structures, such as trees, bushes and buildings. Then, use your cinder blocks to form a circle by placing them on their edges in concentric circles.

Make sure the blocks fit snugly together and that there are no gaps between them. You can also add mortar or grout if needed for additional stability.

Step 2: Create the Inner Wall

Once the base is in place, you can start layering cinder blocks to form the inner wall. Again, make sure there are no gaps and use mortar or grout if needed. The height of your wall should be at least 6 inches above the outside edge of your base. Creating a multi-level structure is also an option if desired.

Step 3: Fill in Any Gaps With Sand or Gravel

To make your fire pit more stable, fill in any gaps between the blocks with either sand or gravel. This will help to even out any bumps or dips in the surface and give it a smoother look. This step is not necessary but it will give your fire pit a more polished look. While filling in the gaps, you can also add Lava rocks for improved insulation and a more decorative effect.

Fill in Gaps Between the Blocks With Sand

Step 4: Install Fire Resistant Fabric

For added safety, make sure to install fire-resistant fabric on the inside of your fire pit. This will help to protect the blocks from heat damage while also keeping any embers or sparks contained within your fire pit. You can also opt to install a firepit table kit which includes its own protective fabric.

Step 5: Set Up a Fire Pit Table Kit

If desired, you can also set up a fire pit table kit which will allow you to enjoy your outdoor space while still staying warm. This is an optional step but it’s sure to make your outdoor area more inviting and enjoyable for friends and family. This will add an extra layer of safety and comfort to your fire pit.

Following these steps will help you to build a fire pit with cinder blocks that are both attractive and safe. Keep in mind that all rules regarding open fires still apply, such as keeping a fire extinguisher nearby or only using dry wood for burning. Also, remember to follow any local laws or regulations that may be in place in your area.

Additional Tips and Tricks to Build a Fire Pit With Cinder Blocks

  1. When you build your fire pit using cinder blocks, make sure to use a flat surface or level ground as the base for your fire pit. This will ensure that it is safe and secure in all weather conditions.
  2. Be mindful of where you place the fire pit. It would be best to keep it at least 10 feet away from your house or any other structure.
  3. Make sure the fire pit is not placed in a low area where smoke can accumulate.
  4. Consider building a windbreak wall behind your fire pit to protect it from gusts of wind that could cause sparks and embers to fly away.
  5. Use a metal mesh screen on top of the cinder blocks to help keep embers from flying out of the fire pit and onto nearby grass or dirt.It’s important to have a designated area for storing firewood away from the fire pit. This helps prevent sparks from igniting larger fires in the surrounding area.
  6. Try not to use lighter fluid, gasoline, or other flammable liquids to start your fire.
  7. Always have a bucket of water nearby, and be sure to completely extinguish the fire before you leave it unattended.
  8. When building your fire pit always consider safety first. Make sure all of your materials are sound and secure. Also, be sure to keep children away from the fire pit when in use.
  9. Finally, don’t forget to have fun and enjoy the warmth of your fire pit!
Use a Metal Mesh Screen

Following these tips and tricks will help you create a safe and secure fire pit with your cinder blocks. With the right materials, know-how, and safety precautions, you can easily make a cozy spot for gathering around the campfire to roast marshmallows or spend quality time with family and friends.

Precautions Need to Follow for Building a Fire Pit With Cinder Blocks

When building a fire pit, it is important to remember safety first. Here are some precautions you need to take before igniting the fire:

  1. Make sure that your cinder blocks are sturdy and have no cracks or chips in them. Any cracks can weaken the structure and possibly cause the fire to spread too quickly.
  2. Choose a location away from any flammable materials such as furniture, trees, and shrubs.
  3. Make sure that the area is free of overhanging branches or other combustible material.
  4. Place the fire pit at least 10 feet away from any structure and clear all combustibles in a 30-foot radius around the pit before lighting it.
  5. Never leave the fire unattended and be sure to extinguish it completely before you leave.
  6. Check with your local fire department for any additional safety tips that may apply to your area.
The Area is Free of Overhanging Branches

Following these precautions will help ensure a safe and enjoyable experience when building your fire pit.

Frequently Asked Questions

What Material is Best to Use When Building a Fire Pit With Cinder Blocks?

Cinder blocks are an ideal choice for constructing a fire pit. They are strong and durable, designed to withstand extreme temperatures, and can come in many different styles and sizes. Plus, they’re relatively inexpensive compared to other materials like bricks or stones.

What Size of Fire Pit Should I Build?

The size you choose for your fire pit will depend largely on the size of your outdoor space and how many people you plan to accommodate around it. Generally speaking, a 3-foot diameter is a good size for up to five people, while larger models can easily fit up to 10 or more.

What Are Some Other Fire Pit Safety Tips?

When building a fire pit with cinder blocks, it’s important to make sure that the area is clear of debris and combustible materials. Make sure there are no trees or shrubs nearby, as falling branches can create sparks that could cause a fire.

Additionally, keep an extinguisher handy in case of emergency. Finally, never leave a fire pit unattended, and make sure it is completely extinguished before leaving the area.

What Are Some Ideas for Decorating My Fire Pit?

Once you have built your cinder block fire pit, there are lots of ways to customize it to suit your style. You can add seating around the perimeter or even build a small fire pit table for snacks and drinks.

You can also decorate with outdoor rugs, pillows, and string lights to create a cozy atmosphere. Finally, you can top off your fire pit with decorative elements like candles, river stones, and glass gems.

What Are Some of the Best Foods to Cook Over the Fire Pit?

Cooking over a fire pit is a great way to enjoy delicious meals with your friends and family. Some of our favorite recipes include roasted marshmallows, grilled vegetables, s’mores, and kebabs. You can also cook up some tasty treats like pizza or quesadillas for an easy dinner option. The possibilities are endless!

Cooking Over a Fire Pit is a Great Way


In summary, building a fire pit with cinder blocks provides an easy and affordable way to add style and enjoyment to your outdoor space. Whether you choose to make a rectangular, round, or square shape for the firepit is completely up to you.

Make sure the area is always kept clean of debris and inspect it regularly for any signs of damage. Additionally, consider using heat-resistant paint or sealers to protect the cinder blocks from erosion and weathering over time.

Finally, use common sense when operating your fire pit; keep a close eye on children nearby and never leave a burning fire unattended. With some planning, patience, and creativity, you’ll have a cozy spot in no time! Now that you have all the information needed on how to build a fire pit with cinder blocks, there’s no time like the present to get started on your own DIY backyard paradise!

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