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Recent Testimonial:

"Not a query - just a thank you. My plum slate rockery stone arrived today and I am very pleased with the quality and quantity for the price. Some of the pieces were much bigger than stated, but thankfully help was at hand, otherwise I'm not sure what I would have done. I guesstimated the quantity just about right and my new rockery looks fab- all I need to do now is get the plants in."

Anne-Louise - 19th April 2017
Plum Slate Rockery

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Black Pebbles 20-40mm

Naturally tumbled Black Pebbles 20-40mm can be used to create an attractive feature in your garden, they look stunning when wet. They can be used alongside different aggregates to create an individual, original garden design. They are a rounded angular shape and are dark grey when dry and black when wet. Black Cobbles 40-90mm also available.  Please see  Sizing Info

Prices shown below include VAT & Delivery - with no hidden extras.

Black Pebbles 20-40mm
Black Pebbles 20-40mm Black Pebbles 20-40mm

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This product is Not Fish Friendly

Size: Black Pebbles 20-40mm & Black Cobbles 40-90mm

Applications: Landscaping, Gabion Stone

Main Uses: Hard-landscaping, Water Features, Rockeries

Colour: Black when wet but do dry Grey (as 2nd photo shows)

Shape: Tumbled

Rock Type: Limestone

Area m2
Vol m3
Weight kg
 mm  m



  • Black Cobbles 40-90mm

    Black Cobbles 40-90mm

    These naturally tumbled Black Cobbles 40-90mm look fantastic when wet so are ideal for water features but are equally effective for garden borders and small gabion baskets  - they will provide a great contrast to any garden project. The cobbles are rounded in shape and look dark grey when dry and black when wet. 

    Please note that the stock we have in at the moment has the occasional larger sized cobble than the size stated.

    Black Pebbles 20-40mm also available. Please see  Sizing Info

    Prices shown below include VAT & Delivery - with no hidden extras.
  • Black Basalt 6mm

    Black Basalt 6mm

    This 6mm angular volcanic rock that is jet black when wet and a lighter charcoal colour when dry will look beautiful for years. The 6mm size is used in the main for pebble dashing but can also be used for pathways, decorative uses and water features. The actual size of this product is 3–6mm. Also available Black Basalt 10mm, Black Basalt 14mm and Black Basalt 20mm When first supplied it will have a light dust on which will initially mask the colour but will disappear when washed. 

    Prices below inc. VAT and delivery.

  • Black Basalt 10mm

    Black Basalt 10mm

    Black Basalt, also known as Black Granite, has become increasingly popular – it is a stunning angular volcanic rock that will look beautiful for years. A durable stone that is resistant to moss growth, it is perfect for drives & paths and can also be used in water features. Jet black when wet & charcoal colour when dry it will add a wow factor and can create a stylish, contemporary look to any patio or garden. Naturally quarried so can vary in formation, size & colour. Actual size is 6-10mm - see sizing info. 6mm, 14mm & 20mm Black Basalt also available. Price below include VAT & delivery.