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20mm Black Basalt

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20mm Black Basalt

20mm Black Basalt is an angular stone that is extremely durable and has a lovely contemporary look and feel to it. This particular stone is becoming increasingly popular in the market for pathways and driveways as its colour and size adds a lovely touch of class to your project. This 20mm size is perfect for driveways because it binds together really well and doesn't scatter or break up when driven or walked upon. This garden gravel is often referred to as black granite or graphite chippings. This product is a duller gorgeous grey colour when dry and a striking jet black colour that really shines through when wet which makes it a good product to have to use around water, things such as water features, ponds etc.

Need slightly more material?

You can add up to 8 Pre-Packed bags when ordering a bulk bag for delivery. Give our sales team a call on 0300 303 3213 for a free quote today.

Size, Colour & Dust

Here at The Stone and Garden Company we offer Black Basalt in a 10mm and 20mm size. The beautiful bold colour of this stone is sure to give any garden a contemporary look. When dry this Black Basalt is grey in colour, but when wet the true jet black colour shines through. Please be aware that there may be a slight variation in the size, shape and colour of this material as it is a naturally quarried product. If you are unsure about this product, you can go to our Gravel and Granites page to view other products we supply with similar uses to Black Basalt. Please be aware our bagging process will result in certain products containing a strong element of dust, this may result in the initial appearance being different to product images however, don’t panic this can be easily removed by using a hose or by simply allowing the rainfall to do this once the product is laid.


Coverage (Approximations from a 4-5cm depth): • 1 Bulk Bag = 10 Square Metres • 20kg Bag = 0.25 Square Metres • 4 x 20kg Handy Bags = 1 Square Metre •


Enter your postcode in the Delivery Rate box above and the price you see is the price you pay. All of our prices already include VAT and are Trade Prices. We supply most of our materials in either Bulk Bags, Handy 20kg Pre-packed Bags or Loose Loads. For a price on any Loose Load please contact our sales team on 0300 303 3213. To see more details about how we delivery the items please click here.

This product is also available as loose tipped load as are most of our products up and down the UK. For a quote on the prices of give the sales team a quick call on 0300 303 3213

Don't Forget Your Weed Control Membrane

Our Membrane is specially designed to help prevent any unwanted weeds from growing up through your gravel. We supply this geo-textile ground-cover in various sizes to suit every project. Check out our Weed Control Membrane page for more details.


We have recently highlighted this beautiful looking product in our blog, click here to read more about it.

Additional Information

Weight Approx (KG) 850
Size 20mm
Applications Decorative, Landscaping, Garden Feature, Water Feature
Stone & Garden Co Delivery Information
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