Black Basalt Gabion Cobbles

Black Basalt Gabion Cobbles - Available Online in Bulk Bags with Nationwide Delivery

In Stock

Black Basalt Gabion Cobbles

Black Basalt Gabion Cobbles - Available Online in Bulk Bags with Nationwide Delivery

In stock
Enter your postcode for an accurate price
ALL QUANTITIES BELOW 10 TONNES ARE AVAILABLE IN BULK BAGS ONLY
Grouped product items
Product Name Qty
850kg Bulk Bags including delivery including delivery
from

Grouped product items
×

How to measure?

Take a metric tape measure and measure the length, width and depth of the area to be filled. The length and width measurements should be recorded in metres and the depth in millimetres. Now take these figures and enter them into the quantity calculator to reveal the approximate quantity required for your job. 

Remember: 

1 metre is equivalent to 1000mm or 100cm 

1 centimetre is equivalent to 10mm


Black Basalt Gabion Cobbles Consist of:

A rounded 100-170mm** smooth cobble from the far east. The product is black when wet and charcoal grey when dry and is a product not found amongst native UK stone making this product particularly desirable for Gabion installations. The shades of black and grey are subtle when dry but really come alive when the product is wet. Please Note: Main picture shows the product when wet. See Gabion Basket Installation Video

Ideal for:

Gabion baskets, erosion control measures, See Gabion Installation Video

Availability:

Bulk Bags Only

Minimum Order Quantity:

1 Bulk Bag

Coverage:

1 x Bulk Bag will fill approx 0.6 cubic metres. Quantity used will depend on the skill of the installer. An experienced installer will use more stone than an inexperienced one.

Bag Weights:

850-900kg per bag. Gabion Stone is an unwashed product and thus may contain 5-10% fine material

Stone Density:

Approx 1.8 tonnes per cubic metre.

Fish Friendly?

Yes

**DUE TO IT'S SIZE, GABION STONE IS NOT A WASHED PRODUCT AND WILL BE DIRTY ON ARRIVAL. ONCE INSTALLED A HOSEPIPE OR RAIN SHOWER WILL LEAVE A CLEAN FINISH. SIZING OF STONE IS APPROXIMATE AND DESCRIBES THE LENGTH OF A SINGLE PIECE OF STONE ACROSS AT LEAST 1 AXIS. PLEASE CALL US IF UNSURE BEFORE ORDERING**


More Information
Enable Google Shopping Yes

Frequently Asked Questions

What Are Black Basalt Gabion Cobbles?

Black Basalt Gabion Cobbles are a 100-170mm graded Basalt cobble. The sizing of stone is approximate and describes the length of a single piece of stone across at least one axis. Therefore, a stone could be 170mm in width but 225mm in length and still be in spec. The distribution of sizes will be completely random. PLEASE CALL US IF UNSURE BEFORE ORDERING.

What Can Black Basalt Gabion Cobbles Be Used For?

Black Basalt Gabion Cobbles can be used for gabion baskets, gabion mattresses and general landscaping.

Are Black Basalt Gabion Cobbles Washed?

Black Basalt Gabion Cobbles are not washed. No gabion stone produced in the UK is washed due to its size. Therefore, the product is likely to be dirty on arrival with up to 10% fine material leftover. It is recommended the finished gabion wall be jet washed to remove any dirt/dust and to reveal the true colour of the stone. A period of heavy or prolonged rain will also achieve the same result.

How Do I Calculate The Quantity Of Black Basalt Gabion Cobbles I Require?

Black Basalt Gabion Cobbles weigh approximately 1.9 tonnes per cubic metre. Therefore, 1 bulk bag will fill approx 0.5-0.6m3 of a gabion basket. The amount of gabion stone used on a project will be determined by the skill of the installer. An experienced installer will use much more stone than the average DIYer as they will be able to pack the stones tighter in the baskets. For this reason, don’t be surprised to use more or less stone than initially calculated. For larger areas you may wish to use our quantity calculator located at the top right hand side of this page under the grey "How Much Will I Need" tab. Simply enter your measurements to reveal the required tonnage. Please be sure to enter the length and width figures in metres and the depth in millimetres to give the correct quantity.

How Do I Install Black Basalt Gabion Cobbles?

Black Basalt Gabion Cobbles should be hand laid to ensure the face of the gabion basket achieves that sought after dry stone wall finish. Machine fill is not recommended as this results in a very loosely filled basket which can compromise strength and is less aesthetically pleasing. For a more detailed guide to Gabion Constuction please see our explainer video here: Gabion Basket Installation

Do Black Basalt Gabion Cobbles Require Maintenance?

Once installed, Black Basalt Gabion Cobbles should be relatively maintenance free. The product may benefit from an annual jet wash to remove any dust and grime that may have accumulated along with any weeds that might have taken root between the stones.

Are Black Basalt Gabion Cobbles Fish Friendly?

Black Basalt Gabion Cobbles are fish friendly. However, we recommend the product be thoroughly washed before immersing in water.

Where Can I Buy Black Basalt Gabion Cobbles?

Black Basalt Gabion Cobbles can be purchased right here! Bulk Bags can be purchased at the top right hand corner of this page. Simply enter the delivery postcode and the delivered price will be shown. You can then add the item to the shopping cart and complete the checkout process where you will be offered our available delivery dates. Deliveries are usually made within 3-5 working days.