Ballast
Ballast is a mix of sharp sand and gravel used for mixing concrete, and as a base for footings, driveways, and paving. It adds strength and durability to concrete and, as a sub-base, creates a stable, load-bearing surface that prevents cracking and shifting. Buildbuddy lists ballast in bulk bags, as well as 25 and 40kg bags for smaller jobs.
You’ll find different grades of ballast depending on aggregate size and mix. Coarse ballast is ideal for heavy-duty applications, while finer mixes suit smaller-scale work. Whether you’re pouring a slab, setting fence posts, or laying foundations, choosing the right ballast makes all the difference.
Compare prices on ballast from trusted suppliers with Buildbuddy and get the best deals today.
15 results
ex
inc
Ballast FAQs
What does ‘ballast’ mean?
In construction, ballast normally refers to a coarse aggregate made of gravel or crushed stone, sometimes mixed with sand. There are different types of ballast for different jobs, but the main ones are:
- Crushed stone ballast: used for railway and road construction.
- Sand and gravel mixtures: used for creating concrete and as a base layer for things like paving.