Our 20mm Ballast 25kg Bag is an essential aggregate for any building or landscaping project requiring robust and reliable concrete. This high-quality, pre-mixed blend of sharp sand and 20mm gravel (often referred to as ‘all-in ballast’) provides the ideal composition for achieving strong, durable concrete mixes with ease. Whether you’re a professional builder or a DIY enthusiast, this convenient 25kg bag ensures consistent performance and excellent workability for a wide range of applications.
Key Features and Specifications
- Composition: A carefully balanced blend of sharp sand and 20mm shingle/gravel.
- Bag Size: Convenient 25kg bag, easy to handle and transport for smaller projects or areas with limited access.
- Aggregate Size: Graded to 0-20mm, providing optimal strength and compaction for concrete.
- Durability: Produces strong, long-lasting concrete suitable for heavy-duty applications.
- Consistency: Pre-mixed for uniform quality, ensuring reliable results every time.
- Compliance: Concreting ballast typically meets BS EN12620 2013 standards for aggregates.
- Colour: Natural mix of greys and browns; colour may vary slightly due to regional sourcing.
Applications
This 20mm ballast is incredibly versatile and forms the backbone of many construction tasks. It is primarily used for mixing with cement and water to produce general-purpose concrete. Common applications include:
- Foundations & Footings: Perfect for creating solid bases for garden walls, sheds, garages, and other structures.
- Pathways & Driveways: Forms a strong, stable sub-base for paving slabs, block paving, and concrete paths or driveways.
- Fence Post Installation: Provides a secure and durable concrete mix for bedding fence posts.
- General Building Work: Suitable for a wide array of construction tasks, including kerb laying and hard landscaping projects.
- Drainage: Can be used as a sub-base with excellent drainage properties where required.
Delivery in and Around London
We offer reliable delivery of our 20mm Ballast 25kg Bags throughout London and the surrounding home counties. Our delivery service covers all London boroughs, including Croydon, Lewisham, Southwark, Camden, and Hackney, as well as the wider Greater London area, encompassing regions like Enfield, Bexley, Redbridge, and Barnet. We also extend our delivery to neighbouring counties such as Kent, Essex, Surrey, and Hertfordshire. Trade quantities are always welcome, and we strive to ensure prompt and efficient delivery to your site. Please note, bulk bag and loose load options are also available for larger requirements.






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