Black Basalt 850kg Bulk Bag

Black Basalt 850kg Bulk Bags provide a bold, contemporary finish combined with the durability required for demanding landscaping applications. This premium angular basalt is available in 10mm, 14mm and 20mm grades, with a naturally dark grey appearance that transforms into a deep jet black when wet. The striking colour contrast creates strong visual impact, making Black Basalt an excellent choice for modern gardens, feature areas, driveways and water features.

Each size offers its own practical benefits. The 10mm grade compacts well to create a stable surface and is ideal for paths, driveways and borders, while the 14mm grade provides a versatile option for mixed landscaping applications. The larger 20mm grade offers excellent stability and longevity, making it particularly suitable for driveways and higher-traffic areas. Supplied washed for a clean, high-quality finish, Black Basalt is also fish-friendly and suitable for ponds, waterfalls and water features where its deep colour creates dramatic contrast.

Features & Benefits

• Premium angular basalt decorative aggregate

• Available in 10mm, 14mm and 20mm grades

• Dark grey when dry, becoming deep jet black when wet

• Strong visual impact for contemporary garden designs

• Durable, hardwearing and long-lasting

• 10mm grade offers excellent compaction and stable surfacing

• 14mm is a versatile size for mixed landscaping applications

• 20mm provides excellent stability for driveways and higher-traffic areas

• Ideal for driveways, paths and decorative borders

• Suitable for rockeries and feature areas

• Fish-friendly for use around ponds and water features

• Suitable for pond margins, waterfalls and aquatic landscaping

• Supplied washed for a clean, ready-to-use finish

• Suitable for domestic and commercial landscaping

Applications

Black Basalt is suitable for a wide range of landscaping applications, including:

• Driveways

• Garden paths and walkways

• Decorative borders and edging

• Rockeries

• Feature beds

• High-traffic landscaping areas

• Pond margins

• Water features and waterfalls

• Areas around aquatic planting

• Contemporary and modern garden designs

Sizes Available

• 10mm – Excellent for compaction and stable surfacing, making it ideal for driveways, paths, borders and general decorative landscaping.

• 14mm – A versatile all-round size for driveways, borders, rockeries and mixed landscaping applications.

• 20mm – A larger, highly stable grade particularly suited to driveways and areas subject to higher levels of traffic.