How to Build an Inground Fire Pit with Bricks

Transform your backyard into a cozy, inviting space with an inground fire pit built from bricks. This DIY project not only adds warmth and ambiance but also increases your home's value. Let's dive into a step-by-step guide to help you create the perfect gathering spot for friends and family.

Before you start, ensure you have the necessary permits and check for any underground utilities. Safety first! Gather your materials: bricks, gravel, sand, cement, a shovel, a trowel, a level, and safety gear like gloves and goggles.

Planning and Preparation

First, decide on the size and shape of your fire pit. A circular design is classic and easy to build, while a square or rectangular pit can add a modern touch. Aim for a diameter of 36 to 48 inches for a comfortable seating area.

Next, choose your bricks. Fire bricks are ideal due to their heat-resistant properties, but regular bricks can also be used. Just ensure they're in good condition and of uniform size.

Site Selection and Preparation

Select a flat, level area in your yard, at least 25 feet away from any structures. Clear the site of debris and mark out the fire pit's dimensions using stakes and string.

Dig out the area to a depth of about 6 to 8 inches. This will accommodate the bricks and provide space for airflow. Ensure the base is level and compact the soil using a tamper.

Building the Base

Create a layer of protection between the soil and your fire pit by adding a 2 to 3-inch layer of gravel. This helps with drainage and prevents moisture from reaching your bricks.

Top the gravel with a 1-inch layer of sand. This provides a stable base for your bricks and helps with leveling. Use a trowel to spread the sand evenly and ensure it's well-compacted.

Assembling the Fire Pit

Now it's time to start laying your bricks. Begin by placing a layer of bricks around the perimeter of your fire pit. Ensure they're level and use a rubber mallet to tap them down if necessary.

For a stable structure, use a half-offset pattern for subsequent layers. This means each brick should be placed with its center over the joint below it. Continue laying bricks in this pattern until you reach your desired height, usually 2 to 3 layers.

Creating the Firebox

The firebox is the inner chamber where the fire burns. Leave a 12 to 18-inch opening in the center of your brick structure to create this space. Ensure the opening is level and well-supported.

To create a lip for your firebox, lay a row of bricks around the opening, offsetting them by half to create a ledge. This provides a safe, stable surface for placing logs and helps contain the fire.

Finishing Touches

Apply a layer of cement between the joints of your bricks to secure them in place. Use a trowel to spread the cement evenly and ensure it fills the joints completely. Allow the cement to dry according to the manufacturer's instructions.

Once the cement is dry, fill your fire pit with sand to a depth of about 2 inches. This provides a safe, non-slip surface for your firewood and helps prevent sparks from flying out.

Now you're ready to light your first fire! Always ensure you follow safety guidelines when using your fire pit. Keep a bucket of water nearby, never leave the fire unattended, and extinguish it completely before going inside.

Enjoy your new backyard gathering spot! Invite friends over, roast some marshmallows, and create lasting memories around your beautiful, handmade inground fire pit.