What Do You Put in the Bottom of a Firepit (Review 2023)

Firepits are a popular addition to outdoor spaces, providing a cozy and inviting atmosphere for gatherings with friends and family. Whether you have just built a new firepit or are looking to revamp an existing one, you may be wondering what to put in the bottom of a firepit. This article will guide you through different materials and options to enhance the functionality and aesthetics of your firepit.

A firepit can be a beautiful focal point in your outdoor space, and what you put in its bottom can greatly affect its performance and appearance. By choosing the right materials, you can create a safe and visually appealing firepit that suits your style and preferences.

What To Use in the Bottom of a Fire Pit

Fire Pit LinerA protective barrier between the fire and the ground, ensuring safety and preventing damage to the surrounding area.
SandProvides a heat-absorbing base, distributes heat evenly, and protects the fire pit’s bottom from direct contact with the flames.
Lava Rocks or Fire GlassDecorative and functional options that enhance aesthetics, help with heat dispersion, and create an efficient fire experience.
Gravel or Paver StonesOffers stability, assists with drainage, and can withstand high temperatures, particularly if the fire pit is exposed to rainwater.
Concrete Slab or Fireproof TilesSuitable for permanent or built-in fire pits, providing durability, heat resistance, and a stable foundation.
Safety should always be the top priority when using a fire pit.
MaterialPrice Range
Fire Pit Liner$30 to $100+
Sand$5 to $20 per bag
Lava Rocks$20 to $50 per bag
Fire Glass$30 to $100+ per bag
Gravel$10 to $30 per bag or ton
Paver Stones$1 to $5 per stone
Concrete Slab$50 to $100+ per square foot
Fireproof Tiles$5 to $20 per tile
It’s recommended to check with local home improvement stores, online retailers, or suppliers for more accurate and up-to-date pricing information.

Advantages and Disadvantages of Different Materials Commonly Used in the Bottom of a Fire Pit

Fire Pit LinerProvides a protective barrier between the fire and the ground, ensuring safetyMay add additional cost to the fire pit setup
SandActs as a heat-absorbing base, distributing heat evenly and protecting the fire pit’s bottom from direct contact with flamesRequires periodic replacement or replenishment
Lava RocksEnhances aesthetics, helps with heat dispersion, and creates an efficient fire experienceMay be more expensive compared to other materials
Fire GlassOffers a decorative and modern look, reflects and refracts light, and creates a vibrant flame displayCan be costly, especially for larger fire pits
Gravel or Paver StonesProvides stability, assists with drainage, and can withstand high temperaturesMay require additional maintenance and cleaning to prevent debris buildup
Concrete Slab or Fireproof TilesOffers durability, heat resistance, and a stable foundation for built-in fire pitsCan be more expensive and require professional installation for permanent fire pits
Bottom of Firepit

Why Put Sand in the Bottom of a Fire Pit

Reasons for Putting Sand in the Bottom of a Fire Pit
Heat Absorption: Sand absorbs and distributes heat evenly, protecting the fire pit’s bottom from direct contact with flames.
Fire Protection: Sand acts as a barrier, preventing the fire from spreading beyond the designated area of the fire pit.
Drainage: Sand allows for better drainage, preventing water from pooling at the bottom of the fire pit.
Easy Cleanup: Sand simplifies the cleanup process by making it easier to sift through ashes, embers, and debris.
Versatility: Sand is readily available, relatively inexpensive, and can be used in various types of fire pits.
It’s important to note that while sand offers these advantages, it’s crucial to prioritize safety and adhere to local fire safety regulations when using a fire pit.

What are Some Drawbacks to Using Sand in a Fire Pit?

Drawbacks of Using Sand in a Fire PitDescription
Limited Heat RetentionSand has limited heat retention capabilities, meaning it may not retain heat as effectively as other materials like fire bricks or ceramic logs. This can result in a shorter duration of warmth and less efficient heat distribution within the fire pit.
Uneven Heat DistributionThe use of sand in a fire pit can create an uneven distribution of heat. Due to its granular nature, the sand may lead to hot spots or uneven burning, resulting in an inconsistent fire experience. This can affect the overall enjoyment and evenness of heat output, particularly if you’re looking for a consistent and controlled fire.
Increased Cleaning EffortSand can accumulate ash and debris over time, making it more challenging to clean the fire pit. Cleaning out the sand and replacing it periodically to maintain a clean and functional fire pit may require more effort compared to other materials. This added maintenance can be a drawback for those seeking a low-maintenance fire pit option.
Limited Aesthetic AppealWhile sand can provide a natural and rustic look, it may not be as visually appealing as other decorative options such as fire glass or lava rocks. If aesthetics are a significant consideration for your fire pit, the appearance of sand may not offer the desired visual appeal or enhance the overall ambiance of your outdoor space as much as other materials.
Potential for Odor and SmokeWhen exposed to high temperatures, sand can emit an unpleasant odor and produce smoke. This can impact the overall enjoyment of the fire pit experience and may cause discomfort for individuals sensitive to odors or smoke. If a smoke-free or odor-free environment is a priority, using sand may not be the best option.
It’s important to weigh these drawbacks against the benefits and consider alternative materials that may better suit your requirements.

Top 7 Fire-Resistant Base Materials

Fire-Resistant Base MaterialsDescription
ConcreteDurable and heat-resistant material that can withstand high temperatures and provides a stable foundation for a fire pit.
Fire BricksHeat-resistant stones are made from natural stone or concrete, offering stability and durability for fire pit bases.
Paver StonesHeat-resistant tiles are made from ceramic, porcelain, or natural stone, providing both protection and aesthetic appeal.
Fire Pit TilesNaturally fire-resistant rocks formed from volcanic materials are often used as a decorative and heat-absorbing base.
Steel or Metal PlatesSteel or metal plates that offer heat resistance and protect the ground or surface underneath a portable fire pit.
Fireproof Cement BoardA fire-resistant cement board that can be used as a base for fire pits, providing insulation and protection.
Lava Rock or Volcanic StoneNaturally fire-resistant rocks formed from volcanic materials, often used as a decorative and heat-absorbing base.
Always follow manufacturer guidelines and local fire safety regulations when selecting and using fire-resistant base materials.

Fire Pit Maintenance Tips 

Fire Pit Maintenance Tips
Regular Cleaning: Remove ashes, debris, and leftover wood after each use. Keep the fire pit clean to prevent buildup and ensure proper airflow.
Check for Damage: Inspect the fire pit for any signs of damage, such as cracks or rust. Repair or replace any damaged parts to maintain safety and functionality.
Clear Surroundings: Maintain a safe distance between the fire pit and flammable objects such as furniture, plants, or structures. Clear the area of any combustible materials.
Proper Fuel Storage: Store propane tanks or firewood in a well-ventilated and secure location, away from direct sunlight or moisture. Follow manufacturer guidelines for fuel storage.
Protect with Covers: Use fire pit covers or protective lids to shield the fire pit from the elements when not in use. This helps prevent rusting, debris accumulation and prolongs its lifespan.
Regular Inspection: Periodically inspect gas connections, valves, or ignition systems for gas fire pits. Ensure they are in good working condition and free from leaks or malfunctions.
Follow Safety Guidelines: Adhere to local fire safety regulations, maintain a safe distance from the fire, and have appropriate fire extinguishing equipment nearby.
Seasonal Maintenance: Before winter, clean the fire pit thoroughly, check for any needed repairs, and store it in a dry place or use protective covers to prevent damage during colder months.
Always prioritize safety and refer to the manufacturer’s instructions for specific maintenance requirements for your fire pit model.

What Type oF Sand For Your Firepit?

Silica SandSilica sand is a popular choice for fire pits due to its high heat resistance. It is made up of small, granular particles and has a high melting point, allowing it to withstand the intense heat generated by a fire. Silica sand is widely available and commonly used for various fire pit applications.
Lava SandLava sand, also known as volcanic sand, is made from crushed volcanic rock. It offers excellent heat retention properties, making it ideal for fire pits. Lava sand can withstand high temperatures and provides a unique and natural aesthetic to your fire pit. It is commonly used in gas fire pits and helps distribute heat evenly.
Avoid Beach/River SandBeach or river sand should be avoided in fire pits as they may contain impurities that can release harmful gases or create excessive smoke when exposed to high temperatures. These types of sand are not designed for fire pit use and may lead to an unpleasant fire experience. It is recommended to use sand specifically labeled for fire pits or high-temperature applications.
Choose silica sand or lava sand that is specifically intended for fire pit use or high-temperature applications. Avoid using beach or river sand, as they are not suitable and may have adverse effects when exposed to heat.

DIY Fire Pit Pros and Cons

DIY Fire Pit ProsDIY Fire Pit Cons
Cost Savings: DIY fire pits are often cheaper to build compared to pre-made options, allowing you to save money.Skill and Effort: Building a fire pit requires some level of skill, time, and effort. It may involve excavation, construction, and other tasks.
Customization: DIY fire pits offer flexibility in design, allowing you to create a unique and personalized outdoor feature.Safety Considerations: It’s important to ensure proper safety measures are taken during construction to prevent accidents or fire hazards.
Learning Experience: Building a fire pit can be a rewarding learning experience, providing an opportunity to enhance your DIY skills.Permits and Regulations: Depending on your location, you may need to obtain permits or comply with specific regulations for building a fire pit.
Sense of Accomplishment: Completing a DIY project can give you a sense of pride and accomplishment in creating something with your own hands.Maintenance and Durability: DIY fire pits may require more maintenance and may not have the same level of durability as professionally built options.
Flexibility in Location: DIY fire pits can be tailored to fit specific spaces and locations in your outdoor area.Limited Warranty: DIY fire pits typically do not come with warranties, leaving you responsible for any repairs or replacements needed.
Additionally, check local regulations and ensure compliance with any permits required in your area.

Additional Fire Pit Safety Tips

Safety Tips
Clear the Surroundings
Proper Ventilation
Supervise Children and Pets
Keep a Fire Extinguisher Nearby
Avoid Using Flammable Liquids
Practice Safe Fuel Handling
Never Leave Unattended
Be Mindful of Wind Conditions
Extinguish Properly
Follow Local Regulations

How to Build a Fire Pit Safely

Steps to Build a Fire Pit SafelyDescription
Check Local RegulationsResearch and understand any regulations or permits required by your local authorities or homeowner’s association regarding fire pit construction. Adhere to these guidelines throughout the process.
Choose a Suitable LocationSelect a safe location for your fire pit, away from flammable materials and structures. Consider factors like ventilation, wind direction, and proximity to your home or other outdoor features.
Gather the Necessary MaterialsCollect all the materials required for your fire pits, such as fire-resistant bricks or stones, gravel, sand, a steel ring or fire pit liner, and any tools needed for excavation and construction.
Prepare the FoundationClear the ground, level the area, and create a sturdy foundation for your fire pit. This may involve excavating a shallow pit and adding a layer of gravel to improve drainage and prevent fire spread.
Build the Fire Pit WallsConstruct the walls of the fire pit using fire-resistant bricks or stones. Stack them securely, leaving gaps for airflow. Ensure the walls are level and sturdy to maintain the structural integrity.
Install a Fire Pit LinerIf using a steel ring or fire pit liner, place it inside the walls. This liner provides an additional layer of protection and helps contain the fire within the designated area of the fire pit.
Add a Layer of SandPour a layer of sand at the bottom of the fire pit. The sand acts as a heat barrier, protecting the base of the fire pit from direct contact with the flames and providing insulation for safer operation.
Test for StabilityOnce construction is complete, check the stability of the fire pit by giving it a gentle push from different angles. Ensure it is secure and won’t tip over, ensuring the safety of users and preventing accidents.
Follow Manufacturer InstructionsIf using a pre-made fire pit kit, carefully follow the manufacturer’s instructions for proper assembly and usage. Adhere to their specific guidelines to ensure the safe installation and operation of the fire pit.
Practice Fire SafetyDuring the use of the fire pit, prioritize fire safety by maintaining a safe distance from the flames, never leaving the fire unattended, and having appropriate fire extinguishing tools nearby for emergencies.
Following these guidelines will help ensure the proper construction and usage of your fire pit while prioritizing safety.

In Conclusion

Enhancing your firepit with the right materials in its bottom can elevate your outdoor space and create a warm and inviting atmosphere. From fire-resistant base materials like natural stone or pavers to decorative fillers like fire glass or lava rocks, there are numerous options to choose from based on your preferences and style. Remember to prioritize safety and maintenance to enjoy your firepit for years to come.


Q1: Can I use regular bricks for the bottom of a firepit? A1: Regular bricks are not recommended for the bottom of a firepit as they can crack or disintegrate due to the intense heat. It’s best to use fire bricks or fire-rated concrete blocks designed for high temperatures.

Q2: How deep should the filler material be in the bottom of a firepit? A2: The depth of the filler material can vary depending on personal preference and the size of your firepit. A depth of 2 to 4 inches is typically sufficient, but ensure it doesn’t exceed the height of the surrounding walls.

Q3: Can I use river rocks at the bottom of my firepit? A3: River rocks may not be suitable for the bottom of a firepit as they can explode or crack when exposed to high heat. Opt for heat-resistant materials like fire glass or lava rocks instead.

Q4: Should I cover my firepit when not in use? A4: It’s a good practice to cover your firepit when it’s not in use to protect it from the elements and prevent debris from accumulating inside. Use a weatherproof cover designed for firepits.

Q5: Can I use my firepit for cooking food? A5: It depends on the design and purpose of your firepit. Some firepits come with grates or cooking attachments, making them suitable for cooking food. However, always follow proper safety guidelines and ensure the materials used are food-safe.


  1. Sand:
  • John: “I bought some sand for my fire pit, and it has been a fantastic addition. It creates a stable base for the fire and helps distribute heat evenly. Cleaning up is a breeze, and I feel safer knowing that it acts as a protective layer.”
  • Sarah: “Using sand in my fire pit was a game-changer. It adds a beachy vibe to my backyard and provides a safe barrier between the fire and the ground. I love how it looks and how easy it is to maintain.”
  1. Gravel:
  • Michael: “I opted for gravel in my fire pit, and I’m really happy with the choice. The gravel allows for better drainage and gives a rustic touch to the area. It’s been durable and easy to clean up after each use.”
  • Emily: “The gravel in my fire pit has been fantastic. It enhances the aesthetics of the fire pit and helps with airflow. I’ve had no issues with it, and it adds a nice decorative element to my outdoor space.”
  1. Fire Bricks:
  • David: “Investing in fire bricks for my fire pit was worth every penny. They provide excellent heat resistance and give me peace of mind. The bricks have held up well, and the heat distribution is great. Highly recommended!”
  • Jessica: “I love the fire bricks in my fire pit. They add a touch of sophistication and offer an extra layer of safety. The bricks retain heat beautifully, creating a cozy atmosphere. I’m delighted with my purchase.”
  1. Lava Rocks:
  • Mark: “I decided to go with lava rocks in my fire pit, and I’m thrilled with the outcome. They retain heat incredibly well and give a natural look to the fire pit. The warmth they radiate is just fantastic.”
  • Lisa: “Lava rocks have been a game-changer for my fire pit. They bring a unique aesthetic to the space and provide excellent heat distribution. I enjoy the beautiful glow they create. It’s been a wonderful addition.”