20 Best Rock For Inside Fire Pit (2023 Updated)

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A rock for inside a fire pit is generally a large, flat rock that is placed inside the fire pit to help reflect and distribute heat evenly.

20 Best Rock For Inside Fire Pit

Product Image Product Name Features Price

10 lbs. of Black 2 in. to 4 in. Round Lava Rock – Fire Rock for Fire Pits and Fireplaces

  • 2 in / 4 in. Round

American 1/2" Medium Black Lava Rock

  • Made from natural resources.
  • Comes in a variety of Sizes, is Black in color, has porous surface.
  • For use with fire bowls, fire pits, and fireplaces, either indoors or outdoors (liquid propane or natural gas).

Pleasant Hearth Lvr100 Lava Rock, 5 lbs

  • Creates a realistic rock bed
  • Creates depth and adds realism to gas logs
  • Long life expectancy

Durable Steel Fire Pit Ring Liner DIY Fire Pit Rim – 27 Inch Diameter by Sunnydaze Decor

  • 27″

AZ Patio Heaters Recycled Fire Glass – Black

  • To enhance or change up the look of your firepit
  • Small recycled glass pieces of random sizes to capture flame light
  • Be careful when installing, do not place too close to firepit’s ignitor or thermocouple

American Fireglass Turquoise Recycled Medium Fire Pit Glass (10 lb Bag)

  • Color-infused, crushed, recycled glass, polished, sifted, packaged and quality controlled to perfection.
  • 1/2″-1″ thickness, unique color, chunkier sized pieces, and eco-friendly.

Pleasant Hearth Solid Steel Fire Ring, Black

  • Large wood capacity
  • Durable solid steel construction
  • Inner ring is 28″ diameter

Fire Pit Essentials 10 lbs. Red Lava Rock 3/8 in.

  • 0.375″

American Fireglass – Medium Black Lava Rock – 10 lbs

  • 10 lbs., Size: 1/2-3/4

Eco-Feu Fire Pit Lava Rock, Gray

  • Top to Bottom: 1 Overall Width.
  • Side to Side: 2 Overall Depth.
  • Front to Back: 1.

American Fire Glass 40-Pound Black Lava Rock, Medium .5-1 inch

  • The natural volcanic stone material is naturally resistant to high temperatures Includes
  • Each quantity is measured in 10 pound increments Color

American Fire Glass Gray Lava Stone, 20 Pounds, Medium 1-2 inch

  • Medium 1-2-Inch Approx 20 Stones

20 lb. Black Lava Pebbles

  • Sourced from lava fields in Asia
  • Pebble size 3/4″ – 1 1/2″. Recommended Uses – Walkways, Outdoor gardens, Fountains, Planters, or other creative interior/exterior design

American Fire Glass 40-Pound Black Lava Rock, Small .125-.5 inch

  • The natural volcanic stone material is naturally resistant to high temperatures Includes
  • Each quantity is measured in 10 pound increments Color

3/8 in. to 1/2 in. 10 lbs. of Chestnut Crushed Fire Glass

  • 3/8 in / 1/2 in

1 in. 10 lbs. Champagne Fire Glass Diamonds for Indoor and Outdoor Fire Pits or Fireplaces

  • ECO-FRIENDLY AND FIREPROOF glass rocks are safe for your home or business, in indoor and outdoor gas fire pits.
  • SET IT AND FORGET IT: Fire glass crystals are durable, low-maintenance accessories that won’t fade.

Elementi Fiery Rock Fire Table, Natural GAS

  • Lava Rock Included: 13 lbs.
  • Canvas Cover.
  • Stainless steel lid.

Real Flame Riverside Propane Fire Bowl in Glacier Gray

  • Top to Bottom: 13 Overall Width.
  • Side to Side: 36.35 Overall Depth.
  • Front to Back: 36.35 Burning Area Height- Top to Bottom: 13 Burning Area Width.

Third Rock Fire Pit Match Lit – Natural GAS / Iron Oxide Patina

  • Material: Carbon Steel
  • Use: Outdoor
  • Dimensions: Overall Height: 40″, Overall Width: 36″, Base Height: 23″
10 lbs. of Black 2 in. to 4 in. Round Lava Rock – Fire Rock for Fire Pits and Fireplaces
  • 2 in / 4 in. Round
American 1/2" Medium Black Lava Rock
  • Made from natural resources.
  • Comes in a variety of Sizes, is Black in color, has porous surface.
  • For use with fire bowls, fire pits, and fireplaces, either indoors or outdoors (liquid propane or natural gas).
Pleasant Hearth Lvr100 Lava Rock, 5 lbs
  • Creates a realistic rock bed
  • Creates depth and adds realism to gas logs
  • Long life expectancy
Durable Steel Fire Pit Ring Liner DIY Fire Pit Rim – 27 Inch Diameter by Sunnydaze Decor
  • 27″
AZ Patio Heaters Recycled Fire Glass – Black
  • To enhance or change up the look of your firepit
  • Small recycled glass pieces of random sizes to capture flame light
  • Be careful when installing, do not place too close to firepit’s ignitor or thermocouple
American Fireglass Turquoise Recycled Medium Fire Pit Glass (10 lb Bag)
  • Color-infused, crushed, recycled glass, polished, sifted, packaged and quality controlled to perfection.
  • 1/2″-1″ thickness, unique color, chunkier sized pieces, and eco-friendly.
Pleasant Hearth Solid Steel Fire Ring, Black
  • Large wood capacity
  • Durable solid steel construction
  • Inner ring is 28″ diameter
Fire Pit Essentials 10 lbs. Red Lava Rock 3/8 in.
  • 0.375″
American Fireglass – Medium Black Lava Rock – 10 lbs
  • 10 lbs., Size: 1/2-3/4
Eco-Feu Fire Pit Lava Rock, Gray
  • Top to Bottom: 1 Overall Width.
  • Side to Side: 2 Overall Depth.
  • Front to Back: 1.
American Fire Glass 40-Pound Black Lava Rock, Medium .5-1 inch
  • The natural volcanic stone material is naturally resistant to high temperatures Includes
  • Each quantity is measured in 10 pound increments Color
American Fire Glass Gray Lava Stone, 20 Pounds, Medium 1-2 inch
  • Medium 1-2-Inch Approx 20 Stones
20 lb. Black Lava Pebbles
  • Sourced from lava fields in Asia
  • Pebble size 3/4″ – 1 1/2″. Recommended Uses – Walkways, Outdoor gardens, Fountains, Planters, or other creative interior/exterior design
American Fire Glass 40-Pound Black Lava Rock, Small .125-.5 inch
  • The natural volcanic stone material is naturally resistant to high temperatures Includes
  • Each quantity is measured in 10 pound increments Color
3/8 in. to 1/2 in. 10 lbs. of Chestnut Crushed Fire Glass
  • 3/8 in / 1/2 in
1 in. 10 lbs. Champagne Fire Glass Diamonds for Indoor and Outdoor Fire Pits or Fireplaces
  • ECO-FRIENDLY AND FIREPROOF glass rocks are safe for your home or business, in indoor and outdoor gas fire pits.
  • SET IT AND FORGET IT: Fire glass crystals are durable, low-maintenance accessories that won’t fade.
Elementi Fiery Rock Fire Table, Natural GAS
  • Lava Rock Included: 13 lbs.
  • Canvas Cover.
  • Stainless steel lid.
Real Flame Riverside Propane Fire Bowl in Glacier Gray
  • Top to Bottom: 13 Overall Width.
  • Side to Side: 36.35 Overall Depth.
  • Front to Back: 36.35 Burning Area Height- Top to Bottom: 13 Burning Area Width.
Third Rock Fire Pit Match Lit – Natural GAS / Iron Oxide Patina
  • Material: Carbon Steel
  • Use: Outdoor
  • Dimensions: Overall Height: 40″, Overall Width: 36″, Base Height: 23″

1. 10 lbs. of Black 2 in. to 4 in. Round Lava Rock – Fire Rock for Fire Pits and Fireplaces

10 lbs. of Black 2 in. to 4 in. Round Lava Rock - Fire Rock for Fire Pits and Fireplaces

  • 2 in / 4 in. Round

Check Latest Price

Sold By Price
Amazon.com – Seller
Home Depot
Overstock.com
The BuildClub

Product Details

Specifications

Details
Bag Capacity/Dry Volume (cu. ft.) .11
Bag Weight (lb.) 10
Coverage Area (sq. ft.) .5
Fire Glass Type Decorative Glass
Manufacturer Warranty 30 customer satisfaction

Reviews From Real Customers

Arlene Joey
Widasari
Karin

2. American 1/2″ Medium Black Lava Rock

American 1/2

  • Made from natural resources.
  • Comes in a variety of Sizes, is Black in color, has porous surface.
  • For use with fire bowls, fire pits, and fireplaces, either indoors or outdoors (liquid propane or natural gas).
  • This lava can withstand extreme temperatures.
  • Requires very little maintenance.

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Amazon.com

Product Details

Reviews From Real Customers

Martin B
Dave R.
Melissa A.

3. Pleasant Hearth Lvr100 Lava Rock, 5 lbs

Pleasant Hearth Lvr100 Lava Rock, 5 lbs

  • Creates a realistic rock bed
  • Creates depth and adds realism to gas logs
  • Long life expectancy
  • Pair with Vermiculite (VMC100) for enhanced look
  • Vented and vent-free log sets

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Amazon.com
eBay
Walmart
Ace Hardware

Product Details

Specifications

Details
Heat Rating 0 BTU
Safe for Cooking No
Indoor or Outdoor Indoor
Brand Name Pleasant Hearth
Fuel Compatibility Natural Gas/Propane

4. Durable Steel Fire Pit Ring Liner DIY Fire Pit Rim – 27 Inch Diameter by Sunnydaze Decor

Durable Steel Fire Pit Ring Liner DIY Fire Pit Rim - 27 Inch Diameter by Sunnydaze Decor

  • 27″

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Sold By Price
Amazon.com – Seller
Walmart – Serenity Health & Home Decor
Lowe’s
Home Depot

Product Details

Specifications

Details
Package Includes Hardware
Primary Features Rust Resistant;Water-Resistant;Weather-Resistant

Reviews From Real Customers

CJ Orange

5. AZ Patio Heaters Recycled Fire Glass – Black

AZ Patio Heaters Recycled Fire Glass - Black

  • To enhance or change up the look of your firepit
  • Small recycled glass pieces of random sizes to capture flame light
  • Be careful when installing, do not place too close to firepit’s ignitor or thermocouple

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart
Best Buy

Product Details

Specifications

Details
Product Length 12 in
Additional Item(s) Included 1 Year Limited Warranty
Application/Use Recycled Fire Pit Glass
Finish Glass
Housing Material Glass

Reviews From Real Customers

gimesom2
taylorpcoin

6. American Fireglass Turquoise Recycled Medium Fire Pit Glass (10 lb Bag)

American Fireglass Turquoise Recycled Medium Fire Pit Glass (10 lb Bag)

  • Color-infused, crushed, recycled glass, polished, sifted, packaged and quality controlled to perfection.
  • 1/2″-1″ thickness, unique color, chunkier sized pieces, and eco-friendly.
  • For use with outdoor fire bowls, fire places and fire pits (liquid propane or natural gas), or as a decorative landscape.
  • This glass can withstand higher temperature compared to logs, lava rocks, stones, etc.
  • Does not emit any smoke, ash, or soot. Requires very little maintenance.

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Amazon.com
eBay
Home Depot
American Fireglass

Product Details

Specifications

Details
Bag Capacity/Dry Volume (cu. ft.) .47 cu ft
Bag Weight (lb.) 10 lb
Color/Finish Blue
Coverage Area (sq. ft.) .6045 ft²
Fire Glass Type Decorative Glass
Manufacturer Warranty Limited Lifetime Warranty
Outdoor Living Product Type Fire Glass

Reviews From Real Customers

Sheila W.
Blas H.
Jonathan D.

7. Pleasant Hearth Solid Steel Fire Ring, Black

Pleasant Hearth Solid Steel Fire Ring, Black

  • Large wood capacity
  • Durable solid steel construction
  • Inner ring is 28″ diameter
  • Package Weight: 40.48 lbs

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Amazon.com
eBay
Walmart
Home Depot

Product Details

Specifications

Details
Diameter (in.) 33 1/2
Assembly Required Yes
Color Black
Product Style Fire ring
Dimensions L x W x H (in.) 33 1/2 dia. x 10 H

Reviews From Real Customers

StevenE

8. Fire Pit Essentials 10 lbs. Red Lava Rock 3/8 in.

Fire Pit Essentials 10 lbs. Red Lava Rock 3/8 in.

  • 0.375″

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Amazon
Walmart
Home Depot
The BuildClub

Product Details

Specifications

Details
Rock Type Lava Rock
Bag Weight (lb.) 10 lb
Coverage Area at 3 In. (sq. ft.) 0.5 ft²
Bag Capacity/Dry Volume (cu. ft.) .125 cu ft
Pack Size 1

Reviews From Real Customers

Betty A

9. American Fireglass – Medium Black Lava Rock – 10 lbs

American Fireglass - Medium Black Lava Rock - 10 lbs

  • 10 lbs., Size: 1/2-3/4

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Amazon
Walmart
Home Depot
American Fireglass

Product Details

Specifications

Details
Bag Capacity/Dry Volume (cu. ft.) 845 cu ft
Bag Weight (lb.) 10 lb
Color/Finish Black
Coverage Area (sq. ft.) 2.800 ft²
Fire Glass Type Lava Rocks

10. Eco-Feu Fire Pit Lava Rock, Gray

Eco-Feu Fire Pit Lava Rock, Gray

  • Top to Bottom: 1 Overall Width.
  • Side to Side: 2 Overall Depth.
  • Front to Back: 1.

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Amazon
NorCal Fire & Grill

Product Details

Reviews From Real Customers

Mark L.A.
Miro Y.

11. American Fire Glass 40-Pound Black Lava Rock, Medium .5-1 inch

American Fire Glass 40-Pound Black Lava Rock, Medium .5-1 inch

  • The natural volcanic stone material is naturally resistant to high temperatures Includes
  • Each quantity is measured in 10 pound increments Color
  • Lava rock is typically black but may include some brown and gray tones Size Options

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Amazon
Walmart – Spotix Inc.
American Fireglass
Zoro

Product Details

Specifications

Details
Style Classic

12. American Fire Glass Gray Lava Stone, 20 Pounds, Medium 1-2 inch

American Fire Glass Gray Lava Stone, 20 Pounds, Medium 1-2 inch

  • Medium 1-2-Inch Approx 20 Stones

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Amazon
Fire Pits Direct
Fireplaces Direct
Spotix

Product Details

Specifications

Details
Style Rolled
Fuel Type Burner Pan

Reviews From Real Customers

Emily R.
Paul H
Frank S

13. 20 lb. Black Lava Pebbles

20 lb. Black Lava Pebbles

  • Sourced from lava fields in Asia
  • Pebble size 3/4″ – 1 1/2″. Recommended Uses – Walkways, Outdoor gardens, Fountains, Planters, or other creative interior/exterior design
  • Tumbled to create a more uniform shape and unique look
  • Rectangular fireplace/fire pit, (length x width x Height)/ 21 = pebbles (lbs.
  • Round fireplace/fire pit-(diameter x diameter x Pebble Height)/ 26 = pebbles (lbs.

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Amazon
eBay
Walmart
Tractor Supply Company

Product Details

Specifications

Details
Product Length 9 in
Warranty 1 Year limited
Application/Use Lava Pebbles
Compatibility Firepit
Finish Black
Housing Material Natural Stone
Indoor and/or Outdoor Indoor and Outdoor
Inlet Diameter 0.5 in
Maximum Temperature 1,040 deg. F
Number of Pieces 1
Operating Temperature Range 1,040 deg. F
Outlet Diameter 0.5 in
Product Width 4 in
Refillable and/or Exchangeable No

Reviews From Real Customers

Reetot

14. American Fire Glass 40-Pound Black Lava Rock, Small .125-.5 inch

American Fire Glass 40-Pound Black Lava Rock, Small .125-.5 inch

  • The natural volcanic stone material is naturally resistant to high temperatures Includes
  • Each quantity is measured in 10 pound increments Color
  • Lava rock is typically black but may include some brown and gray tones Size Options

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Sold By Price
Amazon
Fire Pits Direct
American Fireglass
Zoro

Product Details

Specifications

Details
Style Classic

15. 3/8 in. to 1/2 in. 10 lbs. of Chestnut Crushed Fire Glass

3/8 in. to 1/2 in. 10 lbs. of Chestnut Crushed Fire Glass

  • 3/8 in / 1/2 in

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Amazon
Walmart – Rocks By Box Inc.
Home Depot
Overstock.com

Product Details

Specifications

Details
Bag Capacity/Dry Volume (cu. ft.) .11 cu ft
Bag Weight (lb.) 10
Coverage Area (sq. ft.) .5 ft²
Fire Glass Type Decorative Glass
Manufacturer Warranty 30 customer satisfaction

Reviews From Real Customers

LargoLass
Rigina
Tra

16. 3/4 in. 10 lbs. Storm Gray Fire Glass Beads for Indoor and Outdoor Fire Pits or Fireplaces

3/4 in. 10 lbs. Storm Gray Fire Glass Beads for Indoor and Outdoor Fire Pits or Fireplaces

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Amazon
Home Depot
The BuildClub

Product Details

Specifications

Details
actual depth inches .5
actual width inches .5
bag capacity dry volume cu ft .11
bag weight lb 10
coverage area sq feet .5

Reviews From Real Customers

BETTY

17. 1 in. 10 lbs. Champagne Fire Glass Diamonds for Indoor and Outdoor Fire Pits or Fireplaces

1 in. 10 lbs. Champagne Fire Glass Diamonds for Indoor and Outdoor Fire Pits or Fireplaces

  • ECO-FRIENDLY AND FIREPROOF glass rocks are safe for your home or business, in indoor and outdoor gas fire pits.
  • SET IT AND FORGET IT: Fire glass crystals are durable, low-maintenance accessories that won’t fade.

Check Latest Price

Sold By Price
Amazon
Walmart – Rocks By Box Inc.
Home Depot
The BuildClub

Product Details

Specifications

Details
Bag Capacity/Dry Volume (cu. ft.) .11
Bag Weight (lb.) 10
Coverage Area (sq. ft.) .25
Fire Glass Type Reflective Fire Diamonds
Manufacturer Warranty 30 Day Customer Satisfaction

Reviews From Real Customers

Ric

18. Elementi Fiery Rock Fire Table, Natural GAS

Elementi Fiery Rock Fire Table, Natural GAS

  • Lava Rock Included: 13 lbs.
  • Canvas Cover.
  • Stainless steel lid.

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Amazon
Wayfair
Overstock.com
AuthenTEAK

Product Details

Specifications

Details
Handling Time Product ships in 1-2 Business Days
Body construction Handcrafted glass-fiber reinforced concrete
Burner ring size 12″ diameter
Burner ring construction 16 gauge, 304 stainless steel
Burner pan size 17.7″ diameter

Reviews From Real Customers

firepitsurplus.com

19. Real Flame Riverside Propane Fire Bowl in Glacier Gray

Real Flame Riverside Propane Fire Bowl in Glacier Gray

  • Top to Bottom: 13 Overall Width.
  • Side to Side: 36.35 Overall Depth.
  • Front to Back: 36.35 Burning Area Height- Top to Bottom: 13 Burning Area Width.
  • Side to Side: 36.35 Burning Area Depth.
  • Front to Back: 36.

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Amazon
Wayfair
BBQGuys
Build.com

Product Details

Specifications

Details
Diameter 36.35 in.
Hose Length 8 in.
Nominal Depth 37 in.
Nominal Height 13 in.
Nominal Width 37 in.

Reviews From Real Customers

CG
BrianC

20. Third Rock Fire Pit Match Lit – Natural GAS / Iron Oxide Patina

Third Rock Fire Pit Match Lit - Natural GAS / Iron Oxide Patina

  • Material: Carbon Steel
  • Use: Outdoor
  • Dimensions: Overall Height: 40″, Overall Width: 36″, Base Height: 23″
  • Weight: 250 lbs

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The Charming Bench Company

Product Details

Specifications

Details
Plate Material Carbon Steel
Base Height 23″

Best Rock For Inside Fire Pit Buying Guides

Decide on the size of your fire pit

A rock pit for an inside fire pit should be at least 3 feet wide and 2 feet deep.

Choose a location for your fire pit

When choosing a location for your pit of rock, make sure that it is far away from any flammable materials such as trees, houses, or dried leaves. It is also important to make sure that the pit is in an open area so that the smoke from the fire can dissipate quickly.

Clear the area around your fire pit

You will want to clear an area around your pit of rock for your inside fire pit. You will need to remove any flammable materials, such as leaves or sticks. You will also want to clear a space for your pit of rock that is at least 10 feet in diameter.

Dig a hole for your fire pit

You will need to excavate a hole that is deep enough to contain the desired fire pit. The hole should be wide enough to allow easy access to the pit, as well as provide plenty of room for air to circulate.

If you are using rocks to line the pit, you will need to allow for additional space to accommodate their thickness. Once you have excavated the hole, you can begin to build your fire pit.

Line your fire pit with rocks

If you are looking to line your fire pit with rocks, you will need to find rocks that are specifically designed for fire pits. These rocks are usually made of lava rock or another type of heat-resistant material.

Once you have your rocks, you will need to clean them before placing them in your fire pit. To clean your rocks, simply rinse them off with water and then let them air dry. Once your rocks are clean and dry, you can then begin to line your fire pit with them.

Fill your fire pit with rocks

You will need to fill your fire pit with rocks that are safe to use inside. Some good options for rocks include: fire-resistant bricks, lava rocks, or ceramic logs. You will want to make sure that the rocks you choose are big enough to not fall through the grates of your fire pit.

Build a fire in your fire pit

Building a fire pit in your backyard is a great way to enjoy the outdoors and entertain guests. There are a few things to consider when building a fire pit, such as choosing the right location, deciding on the size and shape of the pit, and selecting the type of material to build it with.

The first step is to choose the location for your fire pit. It’s important to pick a spot that is at least 10 feet away from any structures or trees. You’ll also want to make sure the area is level and has good drainage.

Once you’ve selected the perfect location, it’s time to start planning the size and shape of your fire pit. A good rule of thumb is to make the pit about 3 feet wide and 2 feet deep. As for the shape, you can choose from a traditional circular pit or go for something more unique like an oval or square.

The last thing to consider is what type of material you want to build your fire pit with. Some popular choices include stone, brick, and concrete. You’ll also need to decide whether you want a permanent or portable pit.

Enjoy your fire pit

This is not a good idea. A pit of rock can get very hot and cause a fire.

Conclusion

The best rock for inside a fire pit is one that is heat resistant and not too porous. Some good choices include granite, quartz, or fire-rated bricks. The rock should be placed on a layer of sand or gravel to help promote drainage and prevent the fire pit from getting too hot.

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