Upgrade the look of your fire pit or fireplace with Slate-Black Fire Stones—a modern, matte gray-to-dark-gray fire media designed to handle high heat while giving your flame bed a clean, premium finish. These natural stones are flat, rounded, and smooth, with a consistent, symmetrical look that layers neatly and helps create a polished presentation.
Each 20 lb (9 kg) bag covers about 1 sq. ft. in a single layer, making it easy to estimate how much you need for your burner pan or fire bowl. Compatible with gas, propane, or ethanol fire features for indoor or outdoor use (up to 180,000 BTU).
Specifications
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Product Type: Heat-resistant fire stones / fire pit media
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Color: Medium to dark gray, matte semi-polished finish
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Shape: Flat, rounded, smooth stones; mostly symmetrical
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Size Options: 1/2"–1", 1"–2", 2"–3", 3"–4"
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Packaging: 20 lb (9 kg) bag
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Coverage: 1 bag ≈ 1 sq. ft. (one layer thick)
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Applications: Gas, propane, or ethanol; indoor/outdoor fireplaces up to 180,000 BTU
Key Features & Benefits
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Modern matte look: Sleek slate-black/gray tone elevates fire bowls and fire tables
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Heat resistant: Designed for high-heat fire features (up to 180,000 BTU)
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Easy to plan coverage: 20 lb bag covers ~1 sq. ft. in one layer
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Flexible sizing: Choose stone size that matches your burner pan depth and desired style
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Neat, finished appearance: Smooth, symmetrical stones create a cleaner flame-bed presentation
Why Choose This Product
If you want a low-maintenance, high-end fire pit finish that looks great day or night, these slate-black fire stones are a reliable choice. The matte semi-polished surface and consistent shapes help you get a designer look without complicated setup—just pour, level, and enjoy.
Deliver Results with Love
We want your fire feature to look amazing and perform confidently. These stones are selected to be durable, heat-ready, and easy to install, so you can focus on cozy nights and great gatherings. If you’d like, tell me your burner pan size (length × width, or diameter) and whether you want a single layer or deeper fill, and I’ll estimate how many bags you’ll need.
At SoCal Fire Pits, we can ship to virtually any address in the world. Note that there are some restrictions on certain products and international destinations, and they will be noted as such.
When you place an order, we will estimate shipping and delivery dates based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page, with 1-2 weeks being our standard lead time and 4-8 weeks for items that are built-to-order.
Please also note that the shipping rates for many items we sell are weight-based. The weight of each item can be found in the product details. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
For more information, please visit our Shipping & Returns page or download our LTL Receiving instructions.
LTL Shipping and Receiving Instructions
