Creating a fire pit in your back garden can transform your outdoor space into a cosy, inviting retreat perfect for entertaining, relaxing, or simply enjoying a quiet evening under the stars. Not only does a fire pit add warmth and light, but it also becomes a natural gathering spot for friends and family, enhancing the ambiance of any outdoor occasion. In this comprehensive guide, we'll walk you through the steps to build your own fire pit, from planning and design to construction and safety considerations.

Step 1: Planning Your Fire Pit

Before you break ground, there are a few key considerations to keep in mind:

  • Location: Choose a spot that is safely away from your house and any low-hanging trees or shrubbery. The area should be well-ventilated and clear of any potentially flammable materials. Most local regulations require fire pits to be at least 10 feet (3 metres) away from your house and neighbours' garden.
  • Size and Shape: Decide on the size and shape of your fire pit. Circular fire pits are popular and promote a communal atmosphere, but square or rectangular shapes can complement the existing lines of your home and garden.
  • Materials: Common materials for fire pits include bricks, concrete blocks, or stone. Consider what will best match your garden's style and your personal taste.
  • Local Regulations: Check your local building codes, regulations regarding open fires, and whether you need any permits to build a fire pit in your garden.

Step 2: Designing Your Fire Pit

Once you've planned the location, size, and shape, it's time to design your fire pit. A popular and easy-to-build option is a basic circular fire pit, approximately 36 to 44 inches (about 91 to 112 centimetres) in diameter. This size is large enough to generate ample heat while still being cosy and manageable.

For a simple design, you'll need:

  • Firebricks (for the inner wall) to withstand high temperatures
  • Exterior bricks or stones (for the outer wall)
  • Gravel for drainage
  • Sand to level the base

Step 3: Constructing Your Fire Pit

Preparing the Site

  1. Mark the Centre: Place a stake in the ground where the centre of the fire pit will be.
  2. Draw the Circumference: Tie a string to the stake, measuring half the diameter of your intended fire pit size. Walk in a circle, marking the perimeter with spray paint or chalk.

Laying the Foundation

  1. Dig the Pit: Remove the turf and soil within your marked area to a depth of about 6 inches (15 centimetres), creating a level base. Compact the soil at the bottom of the pit using a tamper.
  2. Add Gravel: Fill the base with a few inches of gravel for drainage, ensuring the surface is level.

Building the Walls

  1. Lay the First Layer of Bricks: Start with the firebricks for the inner wall, using a layer of masonry adhesive between each brick to secure them. Ensure the bricks are level.
  2. Add the Outer Layer: Once the inner wall is complete, start laying your exterior bricks or stones around it. Leave a small gap between the two walls for air circulation.
  3. Continue Building Up: Add additional layers until your fire pit reaches the desired height, typically around 12 to 18 inches (about 30 to 46 centimetres).

Step 4: Finishing Touches

With the structure complete, add a layer of sand inside the fire pit to protect the base and create a uniform surface. Optionally, you can install a metal fire ring at the top of the pit to protect the brickwork from the heat and provide a neater finish.

Safety Considerations

  • Always have a bucket of water, sand, or a garden hose nearby when using your fire pit.
  • Never leave the fire unattended.
  • Avoid using flammable liquids to start or revive a fire.
  • Be mindful of wind direction and strength to prevent sparks and embers from causing unintended fires.


Building a fire pit in your back garden is a rewarding project that enhances your outdoor living space. Following these steps will help you create a safe, attractive fire pit that you and your loved ones can enjoy for many years to come. Remember to adhere to all safety guidelines and local regulations to ensure your fire pit experiences are nothing but enjoyable.