Welcome to Chas. Long & Son (Aggregates) Ltd.

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Chas Long and Son Aggregates Ltd. banner showing 20mm black basalt

Our Products: 20mm Black Basalt

Unsure how much product you need?

  • Use our Aggregate Calculator

    Aggregate Calculator

    This calculator will help you to work out how much stone product you need for your project.

    To calculate how much aggregate you need to order, simply enter the dimensions of the area you are filling/covering. Different aggregates have different densities, so please make sure you have chosen the correct aggregate type. You can use imperial, metric or a combination of both by using the drop down boxes.

    Please note that the calculator is a guide only.

    Diagram showing length, width and depth

    Tonnes of this Aggregate

    The exact conversion will depend on a number of factors beyond our control, for example moisture, method and degree of compaction, type of sub–base, etc. We cannot be held contractually responsible for any surplus or shortfall found on site.

Picture of Chas Long and Son Ltd. product: 20mm Black Basalt
Picture of Chas Long and Son Ltd. product: 20mm Black Basalt

Product name:

20mm Black Basalt

Description:

20mm Black Basalt is a durable, angular stone. Dark grey when dry and turning jet black when wet, it creates a bold and contemporary finish.

How it's sold (Bulk Bags, Mini Bags, Loose):

Bulk Bags, Mini Bags, Loose

Types of application:

Driveways: Suitable for domestic driveways when laid on a suitable sub base. Pathways and Walkways: Provides a firm and stable surface. Borders and Flower Beds: Decorative mulch alternative that helps suppress weeds.