20mm Ballast Bulk Bag Jumbo Bag

Mixed Sand and Gravel, also commonly referred to as Ballast.

is supplied in bulk bags weighing a minimum of 800kg or alternatively 25kg handy bags of Ballast.

"All in Ballast" refers to mixed sand and gravel that is used to make concrete. In general the sizing of the grains/stones varies from 0.1mm to 20mm and is produced using a mixture of sharp sand and 4-20mm gravel/shingle.

Concrete is a mixture of sand, gravel (Ballast) and cement that sets hard within a few hours of being mixed with water.

Benefits of buying a 20mm bag of Ballast:

No mixing required:

As the sand and gravel mix for concrete has already been pre-mixed, the cement and water can then just be added.

Drainage:

Ballast can be used to improve drainage in areas that are prone to flooding. It helps to prevent water from pooling on the surface and causing damage.

Versatile:

20mm all-in-ballast is a strong, durable, and well-graded material that can be used for a variety of applications.

20mm Ballast FAQ:

What can I use ballast for?

20mm Ballast is mainly used for mixing with cement and water to form concrete for the following uses:

• Foundations/Footings
• Concrete slabs for extensions, conservatories & shed bases
• Concrete drives
• Concrete paths
• Concreting in of fence posts
• Kerb, edgings and drainage haunching
• Cavity wall fill/retaining walls

20mm ballast is also used as a fill material

What is the weight of a bulk bag of 20mm Ballast?

What people often refer to as ''ton bag of ballast' is actually now supplied with a minimum weight of 800kg. The bags they are supplied in can hold up to 1000kg. Useful if they happen to fill a bit extra in the loading bucket!

How do I calculate how much ballast I need?

You will need between 1,700 and 1,800 kg of 20mm ballast to make 1 m³ of concrete once the cement has been added. If you are unsure of the quantity you require, please use the contact details above to provide your measurements, and we will be happy to help.

What price is 20mm ballast per ton?

Based on today's current price (20/6/26), 1 bulk bag of ballast costs £56.20 + £22 delivery ex VAT. Working on the bag weighing the minimum amount of 800kg, the cost per tonne would be £97.75. If 3 bags were ordered, it would be free delivery. The cost per tonne (working on an 800kg bag) would come down to £70.25. When buying in larger bulk load deliveries, the price becomes substantially less expensive as the goods are delivered, and tipped loose directly from the quarries.

How are bulk bags delivered?

Typically, bulk bags are delivered on large, crane off-load wagons that weigh between 17 and 32 tonnes. These vehicles are equipped with a crane that has an approximate reach of 5 metres, allowing it to place the bag in the most suitable position from where the wagon can safely park. If delivery is to a residential address, the wagon usually needs around 3 to 4 car lengths of space to get close to the kerb for optimum reach. Please note that cranes cannot lift over parked vehicles, and there must be no overhead obstructions such as power cables, telephone lines, or tree branches.

If the delivery method above isn't possible, alternative options—such as a pallet delivery—can be arranged. Please note that this would incur a substantial additional cost and must be organized before placing your order.