20mm Byford blue metal for structural concrete, drainage runs and civil works.
The bigger brother of the 14mm, this 20mm crushed granite comes out of the Byford quarry and is the workhorse aggregate for structural concrete. It also handles drainage trenches and civil work. Tell us the job and the area and we can help you settle on the right grade.
It also does the heavy lifting in drainage trenches, hardstand blinding and general civil work. Bigger stone means more voids, so it drains faster than the finer grades.
| Grading | 20mm nominal, single size |
|---|---|
| Material | Crushed granite (blue metal) |
| Colour | Blue grey |
| Drainage | Free draining, open voids |
| Source | Byford quarry, supplied to order |
| Approx. density | 1.5 tonnes per m³ loose |
| Coverage | About 6.7 m² per tonne at 100mm depth |
| Supplied | Quarry Direct, sourced from trusted WA quarries and pits |
| Delivery | Perth metro on our own fleet, or pick up from Hope Valley |
Sold by the cubic metre or tonne, delivered and tipped by our own fleet, or picked up from Hope Valley. Supplied to order from Byford, so tell us your tonnage and we'll confirm quarry stock and a delivery date. Ask about pickup times if you'd rather collect it yourself from the yard.
Not sure how much you need? The volume calculator works out cubic metres and tonnes from your measurements and drops the result straight into a quote request. At 100mm deep, one tonne of blue metal aggregate (20mm) covers about 6.7 square metres.
Delivered regularly into Jandakot, Banjup and Treeby, Kwinana and Canning Vale. See all delivery areas.
Add Blue Metal Aggregate (20mm) to a quote Work out quantities
It weighs around 1.5 tonnes per cubic metre. A trench 0.4 metres wide, 0.5 metres deep and 10 metres long needs about 2 cubic metres, roughly 3 tonnes. Use our calculator for your own trench.
The bigger stone means more voids, so it drains faster than the finer 14mm grade, and it's the workhorse size for structural concrete. You're welcome to check with us directly, we're happy to talk through the specifics of your job before you order.
Yes, it handles structural concrete, drainage trenches, soakwells, civil and subdivision works, and hardstand blinding layers. Give us a call on 0409 490 292 or request a quote online and we can talk through the details for your job.
A blue grey, the natural colour of crushed Byford granite. You're welcome to check with us directly, we're happy to talk through the specifics of your job before you order.
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