A lightweight, porous volcanic rock with a deep charcoal hue, ideal for decorative landscapes, drainage, and fire pit accents.

Black Cinder

Boulder Size Guide
Small
1–2 ft • 200–800 lbs
Medium
2–3 ft • 800–2,000 lbs
Large
3–5 ft • 2–6 tons
XL
5+ ft • 6+ tons
Stabilized vs. Non-Stabilized DG
Non-Stabilized DG Loose, natural DG. Best for garden paths, ground cover, and decorative areas.
Stabilized DG Mixed with stabilizer for a firmer surface. Ideal for walkways, patios, and higher traffic areas.
Size
Unit of Measure
Delivery Type
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Material Calculator

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YARDS
Close-up of small dark gray rocks or gravel covering the frame

Color

Charcoal Black • Volcanic Gray • Deep Ash Tones

Best Uses

Ground Cover • Xeriscape Landscapes • Accent Beds • Drainage Areas • Volcanic-Themed Designs

Coverage

Approximately 90–110 square feet per ton at 2" depth

Installation Tips

Install over landscape fabric to help prevent soil mixing and preserve the clean volcanic look.

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Landscape fabric and staples

Installation Essentials Landscape Fabric & Staples

Essential for weed control, cleaner installs, and long-term performance beneath gravel, mulch, and pavers.

  • Helps reduce weed growth
  • Allows water to pass through
  • Ideal beneath gravel, mulch, and pavers
  • Staples help keep fabric securely in place
VIEW FABRIC & STAPLES
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Frequently Asked Questions

Quick answers on materials, pickup & delivery, and project support.

Ordering & Materials
How do I know how much material I need?
Use our coverage calculators for quick estimates, or contact our team and we’ll help you calculate exactly what you need.
Do you sell to homeowners or only contractors?
We serve both homeowners and professionals — no account required.
Can I see materials in person before buying?
Yes — we recommend visiting a yard to view color and texture in natural light.
Do materials look exactly like the photos online?
Natural stone and aggregates can vary. Photos are representative, but seeing material in person is best for final selection.
Pickup & Delivery
Can I pick up material or do you offer delivery?
Both. Pick up at any location or schedule delivery directly to your home or job site.
How quickly can I get delivery?
Most deliveries can be scheduled within 1–2 business days depending on location and availability.
Do you deliver to my area?
We deliver throughout all of Southern California. Contact us to confirm details for your specific location.
Is there a minimum order for delivery?
Minimums can vary depending on material and distance — our team can provide details quickly.
Project Support & Care
Do you help with material selection?
Yes — we can recommend materials based on your project type, application, and desired look.
Can you support commercial or large projects?
Absolutely. We assist with sourcing, availability, logistics, and coordination for larger projects.
Do you carry sealers and stone care products?
Yes — we carry sealers and stone care products to help protect and maintain your materials.
Still have a question?
Reach out and we’ll help fast. Visit our contact page or call your nearest location.