How to build a brick fire pit without mortar?

How to build a brick fire pit without mortar?


Building a brick fire pit without mortar is a great DIY project that can enhance your outdoor space and provide a cozy gathering spot. By using interlocking bricks and a few simple techniques, you can create a durable and functional fire pit without the need for mortar. In this article, we will explore the step-by-step process of building a mortar-less brick fire pit.

Materials and Tools

To build a brick fire pit without mortar, you will need the following materials and tools:

– Fire bricks: These bricks are specifically designed to withstand high temperatures and are essential for building a fire pit.
– Gravel: Used as a base for the fire pit.
– Sand: Used for leveling and filling gaps between bricks.
– Steel ring or grate: Optional, but can provide additional support and improve airflow.

– Shovel: For digging the fire pit area.
– Tamper: Used to compact the gravel base.
– Level: To ensure the fire pit is level during construction.
– Rubber mallet: For tapping and adjusting the bricks.
– Mason’s string and stakes: Used to mark the fire pit area and ensure proper dimensions.

Step-by-Step Guide

1. Choose the location: Select a suitable location for your fire pit, ensuring it is away from any flammable materials and at a safe distance from structures. Check local regulations and guidelines for fire pit placement.

2. Mark the area: Use mason’s string and stakes to mark the desired size and shape of your fire pit. Consider the dimensions of your fire bricks and leave enough space for seating around the fire pit.

3. Excavate the area: Dig out the marked area to a depth of about 6-8 inches. This will allow space for the gravel base and the fire bricks.

4. Level the base: Use a tamper to compact the soil at the bottom of the excavated area. Ensure the base is level and firm.

5. Add gravel: Pour a layer of gravel into the excavated area, filling it to a depth of about 4 inches. Compact the gravel using the tamper to create a stable base.

6. Lay the first course of bricks: Start by placing the fire bricks along the perimeter of the excavated area. Ensure they are level and tightly fitted together. Use a rubber mallet to tap the bricks into place.

7. Continue building the walls: Stack additional courses of fire bricks on top of the first course, interlocking them to create a stable structure. Check for levelness as you go and adjust as necessary.

8. Fill gaps with sand: As you stack the bricks, there may be small gaps between them. Fill these gaps with sand, using a brush to sweep the sand into the spaces.

9. Add a steel ring or grate: If desired, place a steel ring or grate inside the fire pit to provide additional support for the firewood and improve airflow.

10. Test and enjoy: Once the fire pit is complete, test it by starting a small fire. Ensure the bricks are secure and the fire pit functions as intended. Now you can sit back, relax, and enjoy your new brick fire pit!


Building a brick fire pit without mortar is a rewarding DIY project that can add warmth and ambiance to your outdoor space. By following the step-by-step guide outlined in this article, you can create a sturdy and functional fire pit that will provide countless hours of enjoyment. Remember to prioritize safety and check local regulations before starting your project.