5 Best Lava Rocks For Fire Pit And Its Benefits

Lava Rocks are igneous rocks that was formed and made from volcanoes. It is commonly used for in landscaping and or used for Fire pits. Choosing Lava rocks for your Fire pit because of the benefits that you can get instead of using firewood, propane and or natural gas. In today’s post, we will be talking all about lava rocks for fire pit use and the benefits that you can get. A lists Lava rocks that you can buy online will also be provided here.

Before we proceed with the lists of Lava Rocks you can buy online, let us first go into details about the benefits of using lava rocks for Fire pits listed below.

Benefits of using Lava Rock on your Fire Pit:

Protective Porous Surface

What is a Porous Surface and a non-porous surface. Porous surface is a surface that has tiny and microscopic pores or vesicles. The pores allows the liquid or the air to penetrate the rock. Meanwhile, non porous surface on the other hand, does not have pores but instead it is a surface that is smooth and sealed. A non-porous surface does not allow liquid nor air to move through the rock.

Now, one of the benefits of using Lava rock for your Fire pit is that it has a protective Porous surface. Having a protective porous surface on your Fire pit by using lava rocks allows the proper water drainage. When water is properly drained, it’ll keep the lava rocks to be always dry thereby the bottom portion of the fire pit with be protected from the heat of the surface flame.

There is an Even Distribution of the Flame

Another benefits that lava rock for use in your Fire pit is to provide a protective barrier. The protective barrier basically protects the fire pit burner from the elements, thereby there is an even distribution of the flame.

Protects Gas Burner from Direct Exposure

Adding at least 3 to 4 inches of lava rocks to your fire pit can protect the gas burner from direct exposure to the surface flame generated by the heat.

Aside from that, the natural insulating abilities of lava rocks also protects the gas burner from its surface flame. When gas burners are protected, fire pit not only last long but will perform better as a fire pit as well.

Heat Resistant

Lava rocks are perfect to use for in Fire pit because they can disperse flame and spreading the heat. Also, Lava rocks can hold out against very high heat temperatures but does not crack not explode (make sure to use completely dry lava rock and always keep them dry). Lava rocks can also retain heat so they are really good to use for in Fire pit.

Water Resistant

Lava rocks are considered to be water resistant and weather resistant as well for better and improved drainage while at the same time it adds an extra layer of protection to the gas burner.

Easy to clean

When lava rocks are used in Fire pit it can become dirty due to dropping of grease and food. The simplest way to clean Lava rock is to place lava racks in a bucket of water and allow it to soak. Soaking lava rocks for a period time can help remove debris buildup. Always remember to make sure lava rocks are dried completely before placing them back to the fire pit.

To ensure water is draining properly from the fire pit, make sure to check fire pit’s drain holes for any blockage.

Durable and Low Maintenance

Unlike other fire pit media, lava rocks does not decompose nor disintegrate. With continuous use on Fire pit, lava rocks should last for at least 2 years before it starts to shows obvious signs of wear. Until then, continue to use lava rocks on your Fire pit.

Looks Natural

Lava Rock have three different colors available. Basically, the minerals on the rock and also the cooling process usually determines its color: Reddish brown, Black and Gray.

Lava rocks are beautiful rocks to be used in your Fire pit. It’ll give you fire pit more natural looking.

Lava Rocks For Fire Pit you can buy online

Usually, you can find many great selections of lava rocks for your fire pit in your nearest hardware store. However, lava rocks are also available for purchase online. Check out the list of lava rocks you can buy online.

Medium Lava Rocks 10 Pounds by American Fire Glass

The number 1 choices of consumers for us with Fire pits. It is durable nor will it crumble. It provides an even distribution of the heat and surface flame.

Aside from using it on Fire pits, Medium Lava rocks from American Fire Glass can adapt to different setting and usage. It can be used as decoration sometimes used as a filler for your aquarium.

Medium Lava rocks have porous surface which allows the rocks to resist high temperatures of heat.

The package includes 10 pounds of medium sized (1/2 inch to 1 inch), all natural black Lava rock.

If you are interested in this product, buy it now on Amazon

Fireproof and Heatproof Volcanic Lava Rock

Fireproof and Heatproof Volcanic Lava rock by Fire Pit essentials is perfect to use for fire pits. It can also be used in propane Fire pit and Fireplaces and BBq, basically can be used in both indoor and outdoor settings. Often used as an alternative to faux fire logs.

This product is easy to install on your fire pit, you just need to pour just enough amount or the entire bag to the fire pit and you’re good to go.

Normally, newly poured lava rocks tend to pop and or cracks when used for the very first time. Therefore it is recommended to cover the fireplace place for the first couple of minutes to allow the rocks to adjust to the changes in temperature in the pit or fireplace. As a safety precaution, when wet lava rocks is to be used you have to make sure not to go near the pit for about 15 feet and for at least an hour allowing the lava rocks to be heated.

The package includes 10 pounds of 1 to 3 inches of Black Lava rocks for use in Fireplaces and Fire pits.

If you are interested in this product, buy it now on Amazon

Midwest Hearth Lava Rock for Fire Pits and Gas Log Sets

Midwest Hearth Lava Rock by Midwest Hearth, is another lava rock that can be used for Fire pit and Gas log sets. These are natural volcanic lava rocks that can hold up against extreme high temperatures without cracking and exploding.

It is naturally colored red with no artificial colors and chemicals added. It can be used as a base layer to your pits and combine it with log sets on top.

This 10 pound bag products contains red lava rocks with a size between 1/2 to 2 inches, the perfect size for use in outdoor fire pits settings and large gas log sets.

If you are interested in this product, buy it now on Amazon

Stanbroil Tumbled Lava Rock Pebbles for Indoor or Outdoor Gas Fire Pits and Fireplaces

These are rectangular to round shaped lava rock pebbles that can be used for both Indoor and Outdoor gas fire pits and Fireplaces. The pebbles are approximately 1 to 2 inches in size.

Just as what other lava rocks do, these product can also withstand extreme heat temperature and does not crack nor crumble. These lava rock pebbles does not melt nor will change its color.

Stanbroil Tumbled Lava rock pebbles are easy to install, all you need to do is to pour the contents of the entire bag to the fire pit or fireplace either indoor or outdoor settings.

The package contains 10 pounds of 1 to 2 inches gray lava rock pebbles.

If you are interested in this product, buy it now on Amazon

Skyflame Black Natural Stones Lava Rock Granules for Gas Fire Pit 

These are black natural stones lava rock granules by Skyflame. Ideal stones to use not only for Gas Fire pits but for fireplaces, Gas log set, BBQ Grill, for landscaping and cultivation of potted plants as well.

When used for in Fire pits, these lava rock technically improves the performance of the heat of the gas burner. It basically spreads and disperse the gas in all directions of the pit while at the same time retaining the heat located under the cooking surface.

These lava rock can hold up against extreme heat temperatures, it will not crack nor crumble. Safe to use for indoor and outdoor settings.

The package includes 10 pounds with different sizes between 3/8 inches and 3/4 inches.

If you are interested in this product, buy it now on Amazon

Fire Safety and Protection tips

To prevent out of control fire, follow these safety and precautions tips below:

  • Make sure fire pit is placed on stable ground or on solid foundation.
  • Keep fire extinguisher nearby or within reach at all times.
  • Do not use liquid accelerants that are flammable.
  • Never place fire put under electrical lines.


Are Lava rock good for Fire pit?

Yes, in fact Lava rock is considered to be the perfect and ideal fire pit media to use. It provides the fire pit burned a barrier that protects it from the components of the elements. It also helps in distributing the flame evenly, while at the same time helps protect the gas burner from direct exposure to the surface flame of the heat the it produces.

For how long do lava rocks last in a fire pit?

With continuous use but with proper car, Lava rock could lasts up to 2 years before it starts to show wear out signs. When the lava rock starts to disintegrate, you may need to change the lava rock on your fire pit.

How do prevent lava rocks from exploding?

To prevent your fire pit from exploring, make sure not to use a wet lava rock. This means that you have to keep your lava rock dry, and use only dry lava rock for your fire pit. If at some point you really need to use a wet lava rock, for safety and protection, you must cover the fire pit and stay away from it for at least an hour. This will allow the heat to dry up the wetness of the lava rock to keep it from exploding. However, it is best and advisable not to use wet lava rocks.

To prevent lava rock from becoming wet, especially outdoor fire pit make sure to cover the fire pit regularly.

How much lava rock do I need for a fire pit?

There is a certain amount of lava rock for a specific size of the fire pit. In order know how many bags of lava rock should you put into your fire pit, follow these formula on how to calculate based on the size of the fire pit.

Formula: Diameter X Diameter X Depth. Divide by 24 equals the number of bags per pounds that you will be needing for the fire pit.

Can you use Lava rock in Propane fire pits?

Lava rocks are best to use for propane fire pit since it can withstand extreme high temperatures.

What can you substitute Lava rock with to use in fire pit?

Although Lava rock is ideal to use for gas fire pit, if at some point you do have access or if lava rock is not available there are another alternative or you can substitute lava rock with. You can either use a fire glass or lava glass for your fire pit. These glass are compressed dark glass that are also made from volcanic environments.

American FireglassMedium Lava Rocks 10 Pounds by American Fire Glass- Volcanic Fire Pit Lava Rocks for IndoorCheck Price on Amazon
Fire Pit EssentialsBlack 1-3 Inch Lava Rock | Fireproof and Heatproof Volcanic Lava RockCheck Price on Amazon
Midwest HearthMidwest Hearth Lava Rock for Fire Pits and Gas Log Sets, Red 1/2" to 2" (10-lb Bag)Check Price on Amazon
StanbroilStanbroil Tumbled Lava Rock Pebbles for Indoor or Outdoor Gas Fire Pits and FireplacesCheck Price on Amazon
SkyflameSkyflame Red Natural Stones Lava Rock GranulesCheck Price on Amazon

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