Decorative
Lightweight black volcanic stone for high-contrast beds and container work.
Porous volcanic rock, very dark and very light in the hand. It weighs roughly half what crushed stone does per cubic yard, which matters when you are carrying it to a back garden by the barrow.
The porosity holds moisture and releases it slowly, so it behaves better around plants than solid stone does. The contrast against green foliage is the reason people choose it.
Specification
Common uses
How much to order
One cubic yard is 27 cubic feet. How far that goes depends entirely on how deep you are laying it.
| Depth | 1 cu yd covers | Yards per 500 sq ft |
|---|---|---|
| 2 in | 162 sq ft | 3.1 cu yd |
| 3 in | 108 sq ft | 4.6 cu yd |
| 4 in | 81 sq ft | 6.2 cu yd |
| 6 in | 54 sq ft | 9.3 cu yd |
| 12 in | 27 sq ft | 18.6 cu yd |
The arithmetic: length times width times depth, all in feet, divided by 27. A 40 by 20 ft area at 4 inches deep is 40 × 20 × 0.333 ÷ 27, which is about 9.9 cubic yards, so you order 10. Round up rather than down — coming up two yards short on a Friday costs a whole extra delivery.
Black Lava Rock — common questions
Porous volcanic rock, very dark and very light in the hand. It weighs roughly half what crushed stone does per cubic yard, which matters when you are carrying it to a back garden by the barrow.
Lightweight black volcanic stone for high-contrast beds and container work. The porosity holds moisture and releases it slowly, so it behaves better around plants than solid stone does. The contrast against green foliage is the reason people choose it.
Multiply length by width by depth, all in feet, and divide by 27 to get cubic yards. One cubic yard covers 162 sq ft at 2 inches, 108 sq ft at 3 inches, 81 sq ft at 4 inches or 54 sq ft at 6 inches. The calculator does it for you and converts to tons and truckloads.
No. Black Lava Rock is placed loose rather than compacted, so what you order is what you end up with. Order your plan volume, rounded up to the next whole cubic yard.
Decorative stone is quoted per order rather than listed, because cost moves with grade, colour and what is landing at the port. Call or text (860) 918-4238 and we will price it with your delivery date.
About 0.70 tons per cubic yard. A tri-axle carries roughly 18 cubic yards or 22 tons, whichever it reaches first, so a full load of Black Lava Rock is about 18 cubic yards.
We deliver anywhere from West Palm Beach to Miami — Palm Beach, Broward and Miami-Dade counties. See the service area for lead times by county.
Where we deliver Black Lava Rock
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Call for quotePick your material, enter how many cubic yards and see the delivered number before you talk to anyone.