Charcoal Granite Gravel 20mm

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Bulk Bag (800kg)

Bulk Bag (800kg)


50 Maxi Bags (1000kg)

50 Maxi Bags


25 Maxi Bags (500kg)

25 Maxi Bags


Single Maxi Bag (20kg)

Single Maxi Bag


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Samples are available - Order a sample for this product here

This product is also available in a loose tipped load (minimum 10 tonne)

Charcoal Granite Gravel 20mm is a stylishly smoky grey volcanic aggregate that darkens beautifully to a deep, jet-black colour when wet. It is extremely durable and resistant to moss growth making it the perfect decorative material for dressing garden paths and general decorative landscaping.

Also known as Black Basalt or Black Granite, this aggregate is mostly angular in shape meaning it interlocks naturally and stays in place when walked or driven on.

The actual size ranges between 8-25mm, and it is best laid 3-4 cm deep.

Charcoal Granite Gravel Uses

Black is a very bold colour to feature in a design and when used in the perfect setting with contrasting colours it can instantly add a stylish designer look to any style of garden. For the best results, Charcoal Granite can be used for:

  • Creating eye-catching paths, patios and driveways that are easy to lay and will look stunning for years.

  • Forming a stylish backdrop for plants, flowers and shrubs in rockeries, planting beds or borders.

  • This contemporary volcanic gravel reflects light beautifully, creating a shimmering effect that is only amplified by the company of flowing water; darkening the stone to a shiny jet-black hue. Perfect for water features or ponds.

  • Contrasting against lighter, brighter aggregates such as Polar White to make a statement or distinguish one garden zone from another.

  • An ideal alternative to mulch, Charcoal Granite absorbs moisture and drains water efficiently, allowing plants to thrive whilst suppressing unwanted weeds.

  • Residential and commercial landscaping.

Weeds are naturally suppressed by gravel, but for added protection you can add a Weed Resistant Membrane before you lay your gravel and save yourself hours of weeding!

Product Information

Colours: Grey deepening to a gorgeous jet-black when wet. When first supplied the gravel will appear grey as dust on the chippings may mask the natural stone colour, however it will weather to a nice dark grey/black colour over time.

Size Range: Charcoal Granite Gravel is a natural product and individual stones may range in size between 8-25mm.

Shape: Angular.

Material: Basalt.

Fish Friendly: 🐟 This product is fish friendly.

Recommended depthFor general garden use, we recommend laying 20mm gravel to a depth of 30-40mm. For driveways, we suggest laying 40-50mm deep.

Available In: 800kg Bulk Bags & 20kg Sealed Bags. Also available in a loose tipped load*.

How much Charcoal Granite do you need to buy?

To avoid wastage and unnecessary expense, it's important to know how much Charcoal Granite Gravel you will need. Our gravel calculator will help you calculate the amount to order.

Simply enter the length, width and depth of the area you’re covering to find out how many bags of Charcoal Granite Gravel you’ll need. 

For even more inspiration, special offers and to see how our happy customers have used decorative gravel in their gardens follow us on Facebook or Instagram.

Read More
Fish FriendlyThis product can be used with garden fish ponds

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