20mm Ballast (Approx 25kg)

Build a foundation that lasts with our 20mm Ballast (Approx 25kg Bag). This high-quality aggregate is a crucial component for any heavy-duty landscaping or building work in Hertfordshire, providing the structural core needed for mixing your own concrete.

Our ballast is a carefully graded mixture of sharp sand and small stones (up to 20mm in size). When combined with cement and water, it binds together to create a remarkably strong and solid concrete mix. It is perfect for laying foundations, creating concrete shed bases, securing heavy gate posts, or filling in deep trenches.

Supplied in manageable, heavy-duty plastic bags of approximately 25kg, it is perfect for smaller domestic projects or areas with restricted access where bulk bags cannot be delivered. The bags also help to keep the aggregate clean and contained until you are ready to start mixing.

Note: Due to the nature of our materials and manufacturing processes, the colour and finish of your item may vary slightly from the images shown.

Get this 20mm Ballast (Approx 25kg) delivered anywhere in Hertfordshire by our specialist team. We use our own fleet and drivers to ensure every order from our shop is handled with the utmost care.

• Free Delivery: Available on all orders over £200.
• Choose Your Day: Select your preferred delivery date at checkout.
• Delivery Times: Deliveries take place between 8am – 6pm

We provide full coverage across Hertfordshire, including the following postcode areas:

AL: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
CM: 20, 21, 23
EN: 5, 6, 7, 8, 10, 11
HP: 1, 2, 3
LU: 1, 2, 3, 4
SG: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
WD: 4, 5, 6, 7, 17, 18, 23, 24, 25

We don’t just supply it, we can fit it too.

If you’d rather not deal with the hassle, our team can take care of the whole job for you. Fencing, paving, decking, all installed properly by experienced, insured installers who know what they’re doing.

Everything is done with care and built to last, so you get a finish that looks right and holds up.

If you want the full details, you can check out our Installation Service page.

Or if you’re ready to get a price, just book a free visit and we’ll come take a look.