How To Build An Outdoor Fire Pit With Cinder Blocks

Are you dreaming of gathering around a cozy outdoor fire pit with your friends and family? Building an outdoor fire pit with cinder blocks is an excellent way to turn this dream into reality. Cinder blocks are inexpensive, durable, and easy to work with, making them a great choice for DIY fire pit projects.

1. Gather Your Materials

Before you begin, gather all the necessary materials:

Cinder blocks - The number of cinder blocks needed will depend on the size of your fire pit. A general rule of thumb is to use 12 blocks for a small fire pit, 18 blocks for a medium-sized fire pit, and 24 blocks for a large fire pit.
Fire pit grate - Choose a grate that is made of heavy-duty metal and is large enough to cover the base of your fire pit.
Gravel - You will need gravel to fill the bottom of the fire pit and provide drainage.
Sand - Sand is used to level the base of the fire pit and provide a stable foundation for the cinder blocks.
Mortar - Mortar is used to bind the cinder blocks together.
Masonry sealant - Masonry sealant is used to seal the joints between the cinder blocks and protect them from the elements.
Tools - You will need a shovel, a level, a tape measure, a trowel, a hammer, and a chisel.

2. Choose a Location for Your Fire Pit

Select a location for your fire pit that is away from any flammable objects, such as trees, shrubs, and buildings. The area should also be flat and well-drained.

3. Prepare the Foundation

Dig a hole for the foundation of your fire pit. The hole should be at least 6 inches deep and the same width as the fire pit.

Fill the hole with gravel and compact it firmly. The gravel will provide drainage and help to prevent the fire pit from settling.

Add a layer of sand on top of the gravel and level it carefully.

4. Build the Fire Pit Walls

Start by laying the first course of cinder blocks in a square or circular pattern. Use a level to make sure the blocks are level.

Continue laying the cinder blocks, staggering the joints as you go. Use mortar to bind the blocks together.

The height of the fire pit walls will depend on your personal preference. However, most fire pits are between 2 and 3 feet high.

5. Add the Fire Pit Grate

Once the fire pit walls are complete, place the fire pit grate on top of the cinder blocks.

The grate should be large enough to cover the base of the fire pit and provide a stable surface for your fire.

6. Finish the Fire Pit

Once the fire pit is complete, you can finish it with a variety of materials, such as brick, stone, or tile.

You can also add a decorative top to the fire pit, such as a metal fire ring or a cast-iron cooking grate.

Finally, seal the joints between the cinder blocks with masonry sealant. This will help to protect the fire pit from the elements.

With a little bit of planning and effort, you can easily build an outdoor fire pit with cinder blocks. This is a great way to enjoy the outdoors and create a cozy gathering space for your friends and family.